MENASHA, Wis. » Four people are dead and another person is injured after a shooting on a bridge in eastern Wisconsin that a police chief says appears to be a "random act."

The Menasha Police Department said in a statement that the shooting happened around 7:30 p.m. Sunday on the Fox Cities Trestle Trail bridge.

Menasha Police Chief Tim Styka told Post-Crescent Media late Sunday night that the shooter was among those who died. The man was pronounced dead at a hospital.

According to Styka, authorities think the shooting was a "random act" and don’t believe there’s any other threat to the community. He said no responding officers fired their weapons.

The newspaper reports the lone surviving victim underwent surgery and was in critical condition. None of the victims was immediately identified.