Vandals struck the Portland Police Bureau's North Precinct early Tuesday, dumping gooey white paint on more than 20 cop cars, authorities said.

The incident occurred around 4 a.m. outside the Northeast Emerson station, which also houses the bureau's Gang Enforcement Team and Office of Youth Violence Prevention, said Sgt. Chris Burley, a Portland police spokesman.

Paint dumped on 22 police cars in NE Portland pic.twitter.com/UdJ4nzZVhB — KOIN News (@KOINNews) May 1, 2018

Most of the cars are assigned to the youth services division and are being cleaned, Burley said. No suspects have been identified.

It was unclear whether incident is tied to May Day, the annual event dedicated to workers' rights and celebrated by anarchists and others with anti-capitalists leanings worldwide.

-- Shane Dixon Kavanaugh

skavanaugh@oregonian.com

503-294-7632 II @shanedkavanaugh