Authorities say they're investigating two traffic collisions allegedly caused by U.S. Commerce Secretary John Bryson that left him injured.

A joint statement early Monday from the Los Angeles County
Sheriff's department and the San Gabriel Police Department says the
crashes occurred Saturday evening.

Authorities say Bryson was driving alone on a major street in
San Gabriel when he allegedly struck the rear end of a vehicle
occupied by three males that was stopped for a train.

The report says Bryson spoke with the males, then hit their car
again as he departed. The three males followed him while calling
police.

Authorities say Bryson then allegedly caused a second collision
minutes later in the nearby city of Rosemead, striking a car occupied by a man and a woman.

Bryson was found alone and unconscious in his car. Authorities
say he was rushed to a local hospital where he was treated for non
life-threatening injuries.