Large North Portland tire fire threatens nearby building Monday morning

PORTLAND, Ore. (KOIN) -- Crews are working to stop the spread of a tire fire in North Portland Monday morning, officials said.

According to Portland Fire and Rescue, the fire broke out around 5:15 a.m. on North Harborgate Street and Ramsey Boulevard.

Authorities said they are working to keep the fire from spreading to a nearby structure.

This is a developing story.