A man drowned Sunday evening in the American River near Howe Avenue, the fourth case in the city of Sacramento this summer, officials said.

The Sacramento Fire Department received a call at 5:40 p.m. reporting a possible drowning, according to Battalion Chief Shawn Perry. Up to a dozen firefighters searched the river, while a helicopter scanned from above, Perry said.

After an hour, the fire department ended its search without finding the victim. Perry said crews would return when a sighting of the victim is reported.

“We’ve exhausted the survivability of the victim,” Perry said. He explained that the man could not have survived the frigid water past the time they searched.