(Updated, 3:19 p.m.)

ROTHSCHILD — Police are working to determine the cause of a two-vehicle crash Monday on Hwy. 51 in Rothschild that snarled traffic for more than an hour.

The crash was reported around 1:40 p.m. and involved a pickup carrying a travel trailer and a passenger vehicle, police said. The pickup rolled several times before landing on its roof, witnesses said. A boat was also seen in the ditch, but police have not said which vehicle was towing the boat.

There’s no word on injuries at this time.

This story will be updated.