Traffic is flowing smoothly again on westbound Interstate 94 in downtown Minneapolis.

A semitrailer truck overturned just after 10 a.m. Sunday at the entrance to the Lowry Hill Tunnel and blocked two lanes of traffic for about 90 minutes.

No one was injured in the crash, said Sgt. Curt Mowers of the Minnesota State Patrol.

No other vehicles were involved.

Crews towed the rig away around 11:35 a.m., just as many fans were headed downtown for today's Twins-Cleveland Indians game. Traffic had been backed up on the westbound lanes to Portland Avenue, about 1/2 mile east of the crash site.

The rig was empty when it overturned, Mowers said.

It was not immediately clear what led to the crash, but wet roads might have played a role, Mowers said.