PORTLAND - Police in Portland, Oregon, say they have detained four people in connection with a shooting that left one wounded during a protest of President-elect Donald Trump.

A news release says police believe the four are gang members.

The man who was shot early Saturday while participating in a march is recovering and is expected to survive. Police say a shooter was in a vehicle on a bridge that spans the Willamette River and that there was a confrontation with someone in the protest march. A man got out of his vehicle and fired multiple shots before fleeing.

Police say 17 people have been arrested in Portland since protests began. Police said Saturday that nine people have been booked into the Multnomah County Jail. Six others were given criminal citations, and two juveniles were released to their parents.

Since Trump's election Tuesday, thousands around the country, spurred by fear and outrage, have taken to the streets in largely non-violent protests.