PARKLAND, FL - FEBRUARY 15: Kristi Gilroy (R), hugs a young woman at a police check point near the Marjory Stoneman Douglas High School where 17 people were killed by a gunman yesterday, on February 15, 2018 in Parkland, Florida. Police arrested the suspect after a short manhunt, and have identified him as 19-year-old former student Nikolas Cruz. (Photo by Mark Wilson/Getty Images)
Shnider Avril, who was severly burned by an explosion from a propane tank, poses in the Medecins Sans Frontires/Doctors Without Borders (MSF) Drouillard hospital for burn patients on February 12, 2018 in Port-au-Prince, Haiti. The hospital, the only care for severe burn patients in Haiti, is run out of the extremely impoverished and densely populated Cite Soleil neighborhood. The hospital treats hundreds of burn patients from across Haiti yearly. Haiti has a high rate of burn victims due to the poor safety standards of cooking areas, a high rate of candle usage and the prevelance of old and defective propane tanks.
(Photo by Spencer Platt/Getty Images)
Jambo, a Briard breed, is groomed in the benching area on Day One of competition at the Westminster Kennel Club 142nd Annual Dog Show in New York, U.S., February 12, 2018. REUTERS/Shannon Stapleton TPX IMAGES OF THE DAY
Former US President Barack Obama and First Lady Michelle Obama stand beside their portraits after their unveiling at the Smithsonian's National Portrait Gallery in Washington, DC, February 12, 2018.
(SAUL LOEB/AFP/Getty Images)
CHICAGO, IL - FEBRUARY 16: Draped with a city of Chicago plag, the remains of Police Commander Paul Bauer arrive at the Nativity of Our Lord church in the Bridgeport neighborhood for his wake on February 16, 2018 in Chicago, Illinois. Bauer was shot and killed on February 13, while trying to help stop a man being pursued by tactical officers in the city's downtown. Bauer's funeral is scheduled for tomorrow. (Photo by Scott Olson/Getty Images)
Students are released from a lockdown outside of Stoneman Douglas High School in Parkland, Fla., after a shooting on Wednesday, Feb. 14, 2018. (John McCall/Sun Sentinel/TNS via Getty Images)
White House counselor Kellyanne Conway (L) and White House Communications Director Hope Hicks stand on the sidelines as U.S. President Donald Trump speaks to reporters in the Oval Office at the White House in Washington, U.S. February 9, 2018. REUTERS/Jonathan Ernst
TOPSHOT - The picture taken on February 15, 2018 in the street of Balduina's district in Rome shows a general view of a huge sinkhole that opened up the day before in Rome, swallowing six cars. No casualties were reported.
About 22 families were evacuated by firefighters following the collapse. The cause of the sinkhole is still under investigation. / AFP PHOTO / TIZIANA FABI (Photo credit should read TIZIANA FABI/AFP/Getty Images)
People hold lights during a demonstration held by pro-independence associations asking for the release of jailed Catalan activists and leaders, at Sant Jaume square in Barcelona, Spain February 16, 2018. REUTERS/Albert Gea TPX IMAGES OF THE DAY
PARKLAND, FL - FEBRUARY 14: People are brought out of the Marjory Stoneman Douglas High School after a shooting at the school that reportedly killed and injured multiple people on February 14, 2018 in Parkland, Florida. Numerous law enforcement officials continue to investigate the scene. (Photo by Joe Raedle/Getty Images)
PYEONGCHANG-GUN, SOUTH KOREA - FEBRUARY 09: U.S. Vice President Mike Pence and North Korean Leader Kim Jong Un's sister Kim Yo-Jong (back left) watch on during the Opening Ceremony of the PyeongChang 2018 Winter Olympic Games at PyeongChang Olympic Stadium on February 9, 2018 in Pyeongchang-gun, South Korea. (Photo by Matthias Hangst/Getty Images)
MECERREYES, SPAIN - FEBRUARY 11: A reveller dressed as an infant with a white dress poses for pictures during 'El Gallo de Carnaval' (The Carnival Rooster) of Mecerreyes on February 11, 2018 in Mecerreyes, in Burgos province, Spain. The 'Gallo de Carnaval' (Carnival Cock) of Mecerreyes is a pagan festival of immemorial times. During the 'Carnavaladas y Zarramacadas' characters take the streets with dressed with ropes, bones, skins, scraps of cloth, oak leaves and other rural items. At the end of the festival the Zarramacos chase young revellers who try to steal a rag rooster from 'El Rey' (The King). (Photo by Pablo Blazquez Dominguez/Getty Images)
A child jumps from a promenade after attempting to sell heart-shaped balloons to a couple on Valentine's Day in Mumbai, India February 14, 2018. REUTERS/Francis Mascarenhas TPX IMAGES OF THE DAY
HATAY, TURKEY - FEBRUARY 14: A photo taken from Turkey's Hatay province shows military vehicles are being transported to border units as artillery units of Turkish Armed Forces continue to hit PYD/PKK terror group targets across Turkey's Reyhanli, Kirikhan and Hassa districts, within the 'Operation Olive Branch' launched in Syria's Afrin, on February 14, 2018. Turkey launched Operation Olive Branch on January 20 in Syrias northwestern Afrin region; the aim of the operation is to establish security and stability along Turkish borders and the region as well as to eliminate PKK/KCK/PYD-YPG and Daesh terror groups, and protect the Syrian people from the oppression and cruelty of terrorists.
(Photo by Eren Bozkurt/Anadolu Agency/Getty Images)
Giant panda cubs play with decorations during an event to celebrate Chinese Lunar New Year of Dog, at Shenshuping Panda Base in Wolong, Sichuan province, China February 14, 2018. Picture taken February 14, 2018. REUTERS/Stringer ATTENTION EDITORS - THIS IMAGE WAS PROVIDED BY A THIRD PARTY. CHINA OUT. TPX IMAGES OF THE DAY
The collapsed area of a cycle lane is seen on Sao Conrado beach after heavy rains in Rio de Janeiro, Brazil February 15, 2018. REUTERS/Sergio Moraes TPX IMAGES OF THE DAY
A Geoffroy's Monk Saki is seen at the Parque de Las Leyendas zoo in Lima, Peru, February 14, 2018. REUTERS/Guadalupe Pardo TPX IMAGES OF THE DAY
Mourners gather at a vigil that was held for the victims of the mass shooting at Marjory Stoneman Douglas High School in Parkland, Fla., on Thursday, Feb. 15, 2018. (Jim Rassol/Sun Sentinel/TNS via Getty Images)
CHENGDU, CHINA - FEBRUARY 16: Aerial view of a large crowd watching dragon dance to welcome Lunar New Year on February 16, 2018 in Chengdu, Sichuan Province of China. The year of the dog is celebrated from the first day of the first month of the lunar year and ends with Lantern Festival on the fifteenth day. (Photo by VCG/VCG via Getty Images)
Tuvan shepherds travel on a sledge harnessed with an Asian two-humped camel in the snow-covered steppe, with air temperature at about minus 27 degrees Celsius (minus 16.6 degrees Fahrenheit), near the nomad camp of farmer Tanzurun Darisyu located in Kara-Charyaa area south of Kyzyl town, the administrative centre of the Republic of Tuva (Tyva region) in Southern Siberia, Russia February 14, 2018. Picture taken February 14, 2018. REUTERS/Ilya Naymushin
WEEHAWKEN, NJ - FEBRUARY 14: People watch fireworks explode over the Hudson River against the backdrop of Manhattan marking Chinese New Year celebrations on February 14, 2018 in Weehawken, New Jersey. In China celebrations begin Friday, starting one of the world's great migrations. Also known as Spring Festival or Lunar New Year, at least 385 million Chinese people are expected to leave the major cities to visit their families in rural parts of the country to mark the Year of the Dog. (Photo by Eduardo Munoz Alvarez/Getty Images)
A Hindu Sadhu or Holy Man applys colors on his face at the premises of Pashupatinath Temple during the celebration of Maha Shivaratri Festival at Kathmandu, Nepal on Tuesday, February 13, 2018. Thousands of Hindu Sadhu or Holy man from India and Nepal come to celebrate Maha Shivaratri Festival at Pashupatinath Temple. (Photo by Narayan Maharjan/NurPhoto via Getty Images)
TOPSHOT - An aerial picture taken in the Ramensky district, on the outskirts of Moscow on February 12, 2018 shows emergency rescuers working at the site of the plane crash which occured the day before.
Rescuers on February 12, 2018 searched through deep snow for body parts and debris after a Russian passenger plane crashed near Moscow minutes after take-off, killing all 71 people on board, in the country's deadliest air crash since 2016. The Antonov An-148 plane went down in a snow-covered field, making it difficult to access, with emergency workers forced to reach the wreckage by foot or on snowmobiles. / AFP PHOTO / Dmitry SEREBRYAKOV (Photo credit should read DMITRY SEREBRYAKOV/AFP/Getty Images)
Joe Zevuloni mourns in front of a cross placed in a park to commemorate the victims of the shooting at Marjory Stoneman Douglas High School, in Parkland, Florida, U.S., February 16, 2018. REUTERS/Carlos Garcia Rawlins TPX IMAGES OF THE DAY
TOPSHOT - 'Flynn' the Bichon Frise, with handler Bill McFadden, poses after winning 'Best in Show' at the Westminster Kennel Club 142nd Annual Dog Show in Madison Square Garden in New York February 13, 2018. / AFP PHOTO / TIMOTHY A. CLARY (Photo credit should read TIMOTHY A. CLARY/AFP/Getty Images)
Mail is collected across the street from 405 E. 54th street, where Donald Trump Jr.'s wife, Vanessa Trump, opened a letter containing white powder in New York, U.S., February 12, 2018. REUTERS/Caitlin Ochs
DUSSELDORF, GERMANY - FEBRUARY 12: A float featuring Prime Minister Theresa May is seen during the annual Rose Monday parade on February 12, 2018 in Dusseldorf, Germany. Political satire is a traditional cornerstone of the annual parades. (Photo by Lukas Schulze/Getty Images,)
FORT LAUDERDALE, FL - FEBRUARY 15: Nikolas Cruz, 19, a former student at Marjory Stoneman Douglas High School in Parkland, Florida, where he allegedly killed 17 people, is seen on a closed circuit television screen during a bond hearing in front of Broward Judge Kim Mollica at the Broward County Courthouse on February 15, 2018 in Fort Lauderdale, Florida. Mr. Cruz is possibly facing 17 counts of premeditated murder in the school shooting. (Photo by Susan Stocker - Pool/Getty Images)
Mount Vesuvius is seen covered by snow, in Naples, Italy February 14, 2018. REUTERS/Tony Gentile TPX IMAGES OF THE DAY
Israeli Prime Minister Benjamin Netanyahu (R) arrives ahead of a planned address at the Muni World 2018 conference in Tel Aviv, Israel February 14, 2018. REUTERS/Nir Elias TPX IMAGES OF THE DAY
Members of the "Bloco da Lama" (Block of Mud) group perform on Jabaquara beach, during a carnival festivities in Paraty, Brazil February 10, 2018. REUTERS/Nacho Doce TPX IMAGES OF THE DAY
White House senior adviser Jared Kushner listens as U.S. President Donald Trump (background) holds a meeting on trade with members of Congress at the White House in Washington, U.S., February 13, 2018. REUTERS/Kevin Lamarque TPX IMAGES OF THE DAY
A Turkey-backed Free Syrian Army fighter holds his weapon in the town of Marea in northern Aleppo countryside, Syria February 10, 2018. REUTERS/Khalil Ashawi TPX IMAGES OF THE DAY
NEW YORK, NY - FEBRUARY 14: Jacob Cox (R) proposes to Cierra Sorrells on Valentine's Day at Rockefeller Center Ice Rink, February 14, 2018 in New York City. Sorrells said yes. The couple is from Greenville, South Carolina. (Photo by Drew Angerer/Getty Images)
A U.S. Coast Guard HC-130 Hercules airplane receives a wash down to protect it from salt at Air Station Barbers Point, Hawaii, January 24, 2018. Picture taken January 24, 2018. U.S. Coast Guard/Chief Petty Officer Brandon Kelly/Handout via REUTERS. ATTENTION EDITORS - THIS IMAGE WAS PROVIDED BY A THIRD PARTY TPX IMAGES OF THE DAY
PARKLAND, FL. - February 15:Thousands gathered for an evening vigil at Pine Trails Park in Parkland, Florida to remember those where were killed and injured in the shooting , on February 15, 2018 in Parkland, Florida.(Carolyn Cole/Los Angeles Times via Getty Images)
A man walks inside Sime Darby Plantation in Gbah, in Bomi County, Liberia December 30, 2017. Picture taken December 30, 2017. REUTERS/Thierry Gouegnon TPX IMAGES OF THE DAY
Airmen, shown through a night vision device, hike in a tactical formation during a nighttime winter mobilization exercise in Kansasville, Wisconsin, U.S. February 10, 2018. Picture taken February 10, 2018. Air National Guard/Staff Sgt. Morgan R. Lipinski/Handout via REUTERS ATTENTION EDITORS - THIS IMAGE WAS PROVIDED BY A THIRD PARTY. TPX IMAGES OF THE DAY
An American flag flies at half staff in front of a building on Park Avenue on February 15, 2018 in New York following a school shooting in Florida yesterday.
US President Donald Trump delivered a televised address Thursday in the wake of a deadly rampage at a Florida school. Seventeen people were killed when Nikolas Cruz, a 19-year-old former student, entered the Marjory Stoneman Douglas High School and opened fire with an AR-15 rifle as students cowered in closets and under desks. / AFP PHOTO / TIMOTHY A. CLARY (Photo credit should read TIMOTHY A. CLARY/AFP/Getty Images)
LONDON, ENGLAND - FEBRUARY 14: Chubby Hearts Over London is a design project conceived as a love letter to London by Anya Hindmarch in partnership with the Mayor of London, The City of Westminster, British Fashion Council, councils and businesses at Wellington Arch on February 14, 2018 in London, England. (Photo by David M. Benett/Dave Benett/Getty Images for Anya Hindmarch )
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The United States experienced it's 30th mass shooting of 2018 this week, according to the Gun Violence Archive. A 19-year-old is accused of opening fire with an assault rifle on students and staff at Marjory Stoneman Douglas High School in Parkland, Florida on Wednesday. The rampage left 17 people dead and more than a dozen others injured. The accused gunman, Nikolas Cruz, was a former student at the school who was expelled for disciplinary reasons. A number of stories of heroism came to light after the tragedy, including one about assistant football coach Aaron Feis who reportedly died after shielding a student from gunshots.
Other major headlines of the week included Barack and Michelle Obama celebrating the unveiling of their official portraits at the National Portrait Gallery, Robert Mueller indicting 13 Russian nationals for election meddling and President Donald Trump's daughter-in-law being taken to hospital as a precaution after white powder was sent to her home.
Click through the slideshow above to see photos from all of these events and more, and be sure to check back next weekend for our selection of the best photography from the week.