A man who apparently drowned Wednesday while swimming in the Wailuku River in Hilo has been identified as Alejandro Barrios Sr., 41, of Orange, Calif., Hawaii County police said today.

In response to a 3:45 p.m. call reporting a drowning, police determined that Barrios has been swimming near a waterfall in the river when he appeared to have trouble swimming. His family attempted to assist him to shore but were unsuccessful and called 911, police said.

Fire rescue personnel located his body and brought the man to shore with the use of a helicopter. Barrios was taken to Hilo Medical Center, where he was pronounced dead at 7:54 p.m.

Police have ordered an autopsy to determine the exact cause of death. The case is classified as a coroner’s inquest.