Police investigated a report of a strong-arm robbery Friday after a man said he awoke disoriented and injured in a downtown alley to find he’d been robbed.

The man said he’d been walking home from the bar area downtown around 2:30 a.m. when he lost consciousness. He awoke Friday morning in an alley to find he’d been robbed and suffered an injury to his face.

Lawrence police Sgt. Ted Bordman said the man had not been able to show police exactly where he woke up, and there is no description of a suspect.