Authorities are investigating a suspicious death on a Northeast Portland bike path, police say.

Portland police said they responded to a path near 122nd Ave and Siskiyou Street about 7:25 a.m. Tuesday and found a man down on the path. Police didn't say how the man died, but an online incident tracker shows police responded to a reported stabbing in the area about that time.

A medical examiner will confirm the man's identity and determine the cause and manner of his death, police said. Homicide investigators are among the authorities that responded to the scene Tuesday morning.

Police urge anyone who has information to call 503-823-0479.

— Jim Ryan