ATLANTA - Former Braves and Angels pitcher Tommy Hanson has died. He was 29.

Coweta County coroner Richard Hawk says an autopsy began Tuesday, following Hanson's death at Piedmont Hospital on Monday night.

Hawk says Hanson was found "unconscious and unresponsive" in Coweta County on Sunday and was initially taken to a hospital in Newnan before being transferred to Piedmont.

Hawk told The Associated Press on Tuesday night "the cause and manor of death are still under investigation."

Hanson, a 6-foot-6 right-hander, pitched for the Braves from 2009-2012, winning at least 10 games each season. He pitched for the Angels in 2013 before signing minor league contracts with the White Sox in 2014 and the Giants in 2015.