Emergency crews work at the scene of a Amtrak train derailment on December 18, 2017 in DuPont, Washington. At least six people were killed when a passenger train car plunged from the bridge. The derailment also closed southbound I-5.
(Photo by Stephen Brashear/Getty Images)
Children dressed in Santa Claus costumes sit inside a classroom before participating in Christmas celebrations at a school in Chandigarh, India, December 20, 2017.
After being stranded in Atlanta during a layover, Penn Ryan of Madison, WI waits to find his luggage near rows of unclaimed baggage at Hartsfield-Jackson Atlanta International Airport on December 18, 2017 in Atlanta, Georgia. Hundreds of flights were cancelled after a power outage at the airport.
(Photo by Jessica McGowan/Getty Images)
U.S. President Donald Trump (L) jokes with Senate Majority Leader Mitch McConnell (R-KY), Sen. Mike Enzi (R-WY), Vice President Mike Pence, Speaker of the House Paul Ryan (R-WI) and Sen. Tim Scott (R-SC) during an event celebrating the passage of the Tax Cuts and Jobs Act on the South Lawn of the White House December 20, 2017 in Washington, DC. The tax bill is the first major legislative victory for the GOP-controlled Congress and Trump since he took office almost one year ago.
(Photo by Chip Somodevilla/Getty Images)
A crew member of MV Open Arms, the search and rescue ship of Proactiva Open Arms, carries a migrant baby before passing it to crew members of MV Aquarius, a search and rescue ship run in partnership between SOS Mediterranee and Medecins Sans Frontieres, during a mid-sea transfer of migrants in the central Mediterranean off the coast of Libya, December 16, 2017.
(REUTERS/Darrin Zammit Lupi)
In this handout photo provided by Kensington Palace, Prince Harry and Meghan Markle pose for one of two official engagement photos at Frogmore House in December, 2017 in Windsor, United Kingdom.
(Photo by Alexi Lubomirski via Getty Images)
An aerial view shows boats, moored on the bank of the Yenisei River in the Siberian Taiga area outside Krasnoyarsk, Russia December 18, 2017.
U.S. House Majority Whip Rep. Steve Scalise (R-LA) (C) heads towards the House chamber to vote on the tax overhaul bill December 19, 2017 at the Capitol in Washington, DC. The House has passed the tax overhaul bill and the Senate is expected to vote on the bill soon.
(Photo by Alex Wong/Getty Images)
U.S. Marines from 3rd Marine Expeditionary force deployed from Okinawa, Japan, participate in the winter military training exercise with South Korean marine on December 19, 2017 in Pyeongchang-gun, South Korea. U.S. and South Korean marines participate in the endurance exercise in temperature below minus 20 degrees celsius under a scenario to defend the country from any possible attacks from North Korea.
(Photo by Chung Sung-Jun/Getty Images)
The casket of San Francisco Mayor Ed Lee is carried into City Hall on December 15, 2017, in San Francisco, California. Mayor Ed Lee was lain in state at the rotunda of City Hall. Lee died on Tuesday from a heart attack, he was 65 years old.
(Photo by Santiago Mejia/San Francisco Chronicle-Pool/Getty Images)
Israeli forces fire towards Palestinians during clashes at a protest against U.S. President Donald Trump's decision to recognize Jerusalem as the capital of Israel, in the West Bank city of Bethlehem December 20, 2017.
The Herzogstand mountain spotlighted by the afternoon sun reflects in the water of the Walchensee lake near Einsiedel, southern Germany, on December 20, 2017.
(PETER KNEFFEL/AFP/Getty Images)
A panda eats food at the Shenyang Forest Zoological Garden in Shenyang, China's northeastern Liaoning province on December 20, 2017.
Rohingya refugee sisters Nur Kaida (R) and Ruhana hug each other at their shelter at the Palongkhali refugee camp near Cox's Bazar, Bangladesh December 21, 2017.
The voting results are displayed on the floor of the United Nations General Assembly in which the United States declaration of Jerusalem as Israel's capital was declared 'null and void' on December 21, 2017 in New York City. The vote, 128-9, at the United Nations concerned Washington's decision to recognize Jerusalem as Israel's capital and relocate its embassy there. The Trump administration has threatened to take action against any country that votes against the United States decision to move its embassy.
(Photo by Spencer Platt/Getty Images)
Israeli-Arab Issa Kassissieh rides a camel wearing a Santa Claus costume during the annual Christmas tree distribution by the Jerusalem municipality in Jerusalem's Old City December 21, 2017.
Australian police stand near a crashed vehicle after they arrested the driver of a vehicle that had plowed into pedestrians at a crowded intersection near the Flinders Street train station in central Melbourne, Australia December 21, 2017.
A Palestinian man with what looks like an explosive belt is taken into an ambulance after he was shot by Israeli border policemen near the Jewish settlement of Beit El, near the West Bank city of Ramallah, December 15, 2017
Sixty-day-old Nadia Ahmad Sabri, who suffers from severe malnutrition, lies in bed at a malnutrition treatment center in the Red Sea port city of Hodeida, Yemen December 20, 2017.
A Pakistani man mourns the death of relative in a hospital after suicide bombers attacked a Methodist church during a Sunday service in Quetta on December 17, 2017. At least eight people were killed and 30 wounded when two suicide bombers attacked a church in Pakistan during a service on December 17, just over a week before Christmas, police said.
(BANARAS KHAN/AFP/Getty Images)
Russia's Soyuz MS-07 spacecraft, carrying members of the International Space Station (ISS) expedition 54/55, blasts off to the ISS from the launch pad at the Russian-leased Baikonur cosmodrome on December 17, 2017. NASA astronaut Scott Tingle and crewmates Anton Shkaplerov of the Russian space agency Roscosmos and Norishege Kanai of the Japan Aerospace Exploration Agency lifted off in the Soyuz MS-07 spacecraft from the Baikonur Cosmodrome.
(KIRILL KUDRYAVTSEV/AFP/Getty Images)
Video grab of Mexican police officers standing guard in the area where a bus driving tourists to Chacchoben archaeological zone overturned in the road between El Cafetal and Mahahual, in Quintana Roo state, Mexico on December 19, 2017. At least eleven tourists who arrived in the Mexican Caribbean on a US cruise ship were killed and another 20 injured in a road accident on Tuesday when they were heading to an archaeological zone, the Quintana Roo state government reported.
(MANUEL JESUS ORTEGA CANCHE/AFP/Getty Images)
Ashen hillsides that were burned in burned in the Thomas Fire take on a nearly winter-like appearance on December 20, 2017 near Carpinteria, California. The Thomas Fire is now the second largest California fire since records began in 1932 at 425 square miles, and has destroyed more than 1,000 structures since it began on December 4.
(Photo by David McNew/Getty Images)
Clouds above Huntcliff and the beach light up with dramatic colours during a winter sunrise on December 20, 2017 in Saltburn-by-the-Sea, England. Milder weather covers much of the country this week as the jet stream keeps low pressure systems further to the north in the run up to Christmas.
(Photo by Ian Forsyth/Getty Images)
Rohingya refugee Omar Khan (L), who says he is a former general of Myanmar army, poses for a picture as he sits at his temporary shelter at the Kutupalong refugee camp near Cox's Bazar, Bangladesh December 19, 2017.
Fans of Kim Jong-hyun, lead singer of top South Korean boy band SHINee, react as a hearse carrying his coffin leaves during his funeral at a hospital in Seoul, South Korea, December 21, 2017.
A snowboarder walks on the Peak Walk bridge at Glacier 3000 in Les Diablerets, Switzerland December 20, 2017.
Nikolai Vasilyev, 64, dressed as Father Frost, the Russian equivalent of Santa Claus, water-skis along the Yenisei River outside the Siberian city of Krasnoyarsk, Russia December 19, 2017. Vasilyev, former teacher of the Siberian State Aerospace University, constructed the water skis out of plastic foam and designed the sticks to propel him forward, while traveling on the water surface.
The Choristers of St Paul's rehearse for a series of services and concerts over the Christmas season at St Paul's Cathedral in London, Britain, December 19, 2017.
A cow is transported by a helicopter after a mudslide in Villa Santa Lucia, Chile, December 18, 2017.
A performer poses during celebrations after Rahul Gandhi, newly elected president of India's main opposition Congress party, took charge as the president during a ceremony outside the party's headquarters in New Delhi, India, December 16, 2017.
A Palestinian protester kicks a flaming tire during clashes with Israeli security forces near the Huwara checkpoint south of Nablus in the Israeli-occupied West Bank on December 20, 2017, as protests continue in the region amid anger over US President Donald Trump's recognition of Jerusalem as its capital.
(JAAFAR ASHTIYEH/AFP/Getty Images)
Prima Ballerina Deborah Ribeiro prepares to perform in front of Rio de Janeiro's Municipal Theater during a protest demanding unpaid salaries and benefits of culture public servants in Rio de Janeiro, Brazil, on December 18, 2017.
(MAURO PIMENTEL/AFP/Getty Images)
Zoo owner Manny Tangco (C-in red shirt) sits next to an orangutan and a Bengal tiger cub wearing a Santa hat during a Christmas party for children visiting from an orphanage at a zoo in Malabon, suburban Manila on December 21, 2017.
(TED ALJIBE/AFP/Getty Images)
Pope Francis blows on a cake to celebrate his birthday during a special meeting at Paul VI hall at the Vatican December 17, 2017.
(Osservatore Romano/Handout via Reuters)
People hold candles at the memorial at the site of last year's truck attack in a Christmas market, which killed 12 people and injured many others, at Breitscheidplatz square in Berlin, Germany December 19, 2017.
A man decorates a Christmas tree made of bananas in Damour area, south of Beirut, Lebanon, December 19, 2017.
Victoria Davis and her son Carmelo attend a service at Judson Memorial Church on National Homeless Persons' Memorial Day on December 21, 2017 in New York City.The annual interfaith service, which is held on the Winter solstice, is organized by the homeless advocacy group Picture the Homeless, a grassroots organization founded and led by homeless people.The service attempts to raise awareness of homelessness and to honor those homeless men and and women who passed away during the year. According to Coalition for the Homeless, in New York City over 60,000 homeless men, women, and children are sleeping each night in municipal homeless shelters.
(Photo by Spencer Platt/Getty Images)
Whirling Dervishes take part in a Sema Prayer Ceremony marking the anniversary of the death of Mevlana Jalal al-Din al-Rumi on December 17, 2017 in Istanbul, Turkey. December 17, 2017 marks the anniversary of the death of Mevlana Jalal al-Din al-Rumi, a poet and the founder of Sufism, a mystical form of Islam. Each year pilgrims come from all over the world to commemorate Rumi's death, in Istanbul an extended ceremony organized by the Mevlana Culture and Art Foundation was held at the historic Galata Mevlava House. Rumi, whose religion was love, was one of the world's most read poets, after his death in 1273 the order was continued by his sons and grandsons. Today pilgrims come from across Turkey and overseas to visit Konya and the site of Rumi's tomb, one of Turkey's most visited tourist attractions. Despite the Mevlava order being shut down and made illegal in 1925 by the new Turkey republic, today the whirling dervishes are the symbol of Turkey's tourism campaigns and in 2008 the Sema ceremony was confirmed by UNESCO as amongst the Masterpieces of the Oral and Intangible Heritage of Humanity.
(Photo by Chris McGrath/Getty Images)
A steam powered locomotive of the Harz Narrow Gauge Railways travels through snow towards the station Brocken on December 16, 2017 in Wernigerode, Germany. Harz Narrow Gauge Railways, which runs on one-meter wide track, still serves the towns of Wernigerode, Quedlinburg and Nordhausen as well as smaller settlements in between. It uses 1950s-era locomotives to haul bogie carriages on approximately 140km of track that weaves through the picturesque Harz mountain range.
(Photo by Alexander Koerner/Getty Images)
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A tragedy in Washington state captured headlines throughout the week after an Amtrak train on a new route derailed on Monday. At least three people were killed and nearly 100 others were injured when the train's cars derailed and plunged to the busy highway below. Federal investigators say the train was traveling 80 mph in a 30-mph stretch of the track during its inaugural run.
Other major headlines of the week included a power outage that caused chaos at Atlanta airport, the House approved a sweeping tax bill and a tour bus was involved in a deadly crash in Mexico.
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.