Investigators allege the man was involved in disturbance and struggled with security staff and police officers Saturday night at Star Bar on E Street

A man accused of causing a disturbance inside a San Diego bar and striking a security guard died at a hospital after he stopped breathing while struggling with the guard and then officers, authorities said Sunday.

A San Diego police officer responded to the Star Bar at 423 E St. at 8:15 p.m. Saturday on a report of a violent man outside, the San Diego County Sheriff’s office — which is leading the investigation into the death — said in a statement.