San Francisco 49ers linebacker Reuben Foster was arrested Sunday on suspicion of domestic violence and possession of an assault rifle, according to multiple media reports.
Foster was booked at the Santa Clara (Calif.) County Jail and held on $75,000, according to jail records. The incident happened at a residence in Los Gatos, Calif.
The 49ers confirmed knowledge of the 23-year-old's arrest.
"The San Francisco 49ers organization is aware of the report regarding Reuben Foster. We take matters of this nature seriously and are gathering all pertinent information," the team's statement said.
This is the second time Foster has been arrested since the NFL regular season ended.
He also was arrested in Tuscaloosa, Ala., on Jan. 12 and charged with second-degree marijuana possession. Foster was a college star at Alabama, which is located in Tuscaloosa.
49ers linebacker Reuben Foster
49ers linebacker Reuben Foster
TUSCALOOSA, AL - APRIL 19: Reuben Foster #10 of the Crimson team looks into the backfield of the White team during the University of Alabama A-Day spring game at Bryant-Denny Stadium on April 19, 2014 in Tuscaloosa, Alabama. (Photo by Stacy Revere/Getty Images)
Jan 7, 2017; Tampa, FL, USA; Alabama Crimson Tide linebacker Reuben Foster (10) during the Alabama Crimson Tide media day at Amalie Arena. Mandatory Credit: John David Mercer-USA TODAY Sports
ATLANTA, GA - DECEMBER 31: Alabama Crimson Tide linebacker Reuben Foster (10) walks onto the field prior to the Chick-Fil-A Peach Bowl football game between the Alabama Crimson Tide and Washington Huskies on December 31, 2016, at Georgia Dome in Atlanta, GA. Alabama won the game 24-7. (Photo by Todd Kirkland/Icon Sportswire via Getty Images)
TAMPA, FL - JANUARY 09: Quarterback Deshaun Watson #4 of the Clemson Tigers is tackled short of the first down by linebacker Reuben Foster #10 and defensive back Minkah Fitzpatrick #29 of the Alabama Crimson Tide during the third quarter of the 2017 College Football Playoff National Championship Game as defensive back Marlon Humphrey #26 of the Alabama Crimson Tide looks on at Raymond James Stadium on January 9, 2017 in Tampa, Florida. (Photo by Brian Blanco/Getty Images)
KANSAS CITY, MO - AUGUST 11: San Francisco 49ers linebacker Reuben Foster (56) flexes after his teammates made a defensive stop in the third quarter of an NFL week 1 preseason game between the San Francisco 49ers and the Kansas City Chiefs on August 11th, 2017 at Arrowhead Stadium in Kansas City, MO. The 49ers won 27-17. (Photo by Scott Winters/Icon Sportswire via Getty Images)
Aug 27, 2017; Minneapolis, MN, USA; San Francisco 49ers linebacker Reuben Foster (56) looks on following the game against the Minnesota Vikings at U.S. Bank Stadium. Mandatory Credit: Brace Hemmelgarn-USA TODAY Sports
Sep 10, 2017; Santa Clara, CA, USA; San Francisco 49ers linebacker Reuben Foster (56) is loaded onto the injury cart during the first quarter against the Carolina Panthers at Levi's Stadium. Mandatory Credit: Kelley L Cox-USA TODAY Sports
SANTA CLARA, CA - SEPTEMBER 10: Christian McCaffrey #22 of the Carolina Panthers talks to Reuben Foster #56 of the San Francisco 49ers after their game at Levi's Stadium on September 10, 2017 in Santa Clara, California. (Photo by Ezra Shaw/Getty Images)
GLENDALE, AZ - OCTOBER 01: San Francisco 49ers linebacker Reuben Foster (56) walks the sidelines prior to an NFL game between the Arizona Cardinals and San Francisco 49ers at the University of Phoenix Stadium on October 1, 2017 in Glendale, Arizona. (Photo by Robin Alam/Icon Sportswire via Getty Images via Getty Images)
SANTA CLARA, CA - NOVEMBER 05: San Francisco 49ers outside linebacker Reuben Foster (56) celebrates after making a tackle during an NFL game between the Arizona Cardinals and the San Francisco 49ers on November 5, 2017 at Levi's Stadium in Santa Clara, CA. (Photo by Robin Alam/Icon Sportswire via Getty Images)
SANTA CLARA, CA - NOVEMBER 05: Arizona Cardinals running back Adrian Peterson (23) and San Francisco 49ers outside linebacker Reuben Foster (56) pose for a picture after exchanging their jersey's with each other during an NFL game between the Arizona Cardinals and the San Francisco 49ers on November 5, 2017 at Levi's Stadium in Santa Clara, CA. (Photo by Robin Alam/Icon Sportswire via Getty Images)
CHICAGO, IL - DECEMBER 03: Daniel Brown #85 of the Chicago Bears carries the football against Reuben Foster #56 of the San Francisco 49ers in the fourth quarter at Soldier Field on December 3, 2017 in Chicago, Illinois. The San Francisco 49ers defeated the Chicago Bears 15-14. (Photo by Joe Robbins/Getty Images)
HOUSTON, TX - DECEMBER 10: Reuben Foster #56 of the San Francisco 49ers talks with Official Allen Baynes on the field prior to the game against the Houston Texans at NRG Stadium on December 10, 2017 in Houston, Texas. The 49ers defeated the Texans 26-16. (Photo by Michael Zagaris/San Francisco 49ers/Getty Images)
SANTA CLARA, CA - DECEMBER 17: San Francisco 49ers outside linebacker Reuben Foster (56) brings down Tennessee Titans running back Derrick Henry (22) during the game between the Tennessee Titans verses the San Francisco 49ers on Sunday, December 17, 2017 at Levi's Stadium in Santa Clara, CA (Photo by Douglas Stringer/Icon Sportswire via Getty Images)
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Prior to the 2017 NFL Draft, Foster's character was called into question due to a couple of incidents at the NFL combine. He failed a drug test because he submitted a diluted sample and also was dismissed from the combine due to an altercation with a hospital employee.
Foster, who was expected to be a top-10 pick, slid down the draft boards of teams until San Francisco landed him with the 31st pick. He had 72 tackles last season despite being limited to 10 games due to injuries.