UPDATE: Police identity man found dead under Morrison Bridge. Michael Harvey was a 60-year-old homeless man.

Portland police say a man's body was discovered Wednesday evening under Morrison Bridge.

Portland Police Bureau detectives believe the man was homeless and might have been involved in a fight with another homeless man.

The cause of death has not been determined, police said.

This story will be updated as more information becomes available.

-- Fedor Zarkhin

fzarkhin@oregonian.com

503-294-7674; @fedorzarkhin