Officers are chasing loose pigs that escaped from an overturned semi on an Interstate 94 ramp in Maple Grove.

The crash happened after 3 a.m. Thursday. The truck was carrying about 100 hogs, and about 10 were loose.

Police and state troopers are trying to corral the pigs and keep them off the freeway.

The right lane of eastbound I-94 is closed in the area and traffic is slow in the left lane.

The State Patrol says the semi driver suffered minor injuries.