TAMPA, Fla. — Doug Martin, a former running back for the Tampa Bay Buccaneers, has died at the age of 36, the team confirmed on Sunday.

“It is with great sadness to inform you all that Doug Martin passed away Saturday morning. Cause of death is currently unconfirmed. Please respect our privacy at this time,” his family said in a statement to Fox Sports.

Martin was a first-round draft pick out of Boise State in 2012 and set several franchise records as a rookie for the Bucs.

They include most rushing touchdowns in a single game (4) and most rushing yards in a season by a rookie (1,454).

In a statement on Sunday, the Buccaneers said they were “deeply saddened to learn of the sudden and unexpected passing” of Martin.

“From his record-setting rookie season in 2012 to his multiple Pro Bowl selection during his six seasons as a Buccaneer, Doug made a lasting impact on our franchise,” the statement went on to read. “We extend our heartfelt condolences to his family, friends, and everyone whom Doug touched throughout his life.”

Boise State also remembered Martin on Sunday, calling him “one of Boise State’s best running backs in school history.”

He was also the school’s first running back to be taken in the first round of the NFL draft.

The Associated Press contributed to this report.