ST. PAUL PARK — Northern Tier Energy is assessing damage from a fire at its oil refinery in St. Paul Park.

Officials said the fire started in a crude oil pump about 11:30 a.m. Sunday. Firefighters from the refinery, St. Paul Park and Newport extinguished the fire by 2:30 p.m.

No one was hurt in the fire. Northern Tier Energy said it has notified the relevant federal, state and local agencies about the fire.

The refinery is located between the Mississippi River and Highway 61/10 in southern Washington County.