Pueblo County, Colorado pile-up crash, today: At least 4 killed on I-25 involving more than 30 vehicles in poor conditions Tuesday

PUEBLO CO., Colo. — At least four people were killed, and more than 30 vehicles were involved in a pile-up crash in Colorado on Tuesday.

The incident occurred around 10 a.m. local time Tuesday on southbound I-25, about 40 miles south of Colorado Springs, authorities said.

So far, authorities have confirmed four deaths.

Video from the scene showed a U-Haul truck among dozens of vehicles in the crash.

“There were heavy winds in the area at the time of the crash, blowing dirt, causing ‘brown out’ conditions,” Colorado State Patrol said in a statement. “There was low to no visibility for motorists.”

I-25 was closed in both directions near the scene of the crash, which remains under investigation.

A Colorado transportation spokesperson said there were poor conditions at the time of the crash, as heavy wind had kicked up dust and dirt.

The official cause of the crash is being investigated.

High wind warnings are in effect for the region on Tuesday. The National Weather Service in Pueblo warned that “significant blowing dust” is possible on the plains, where gusts could be up to 65 mph. Mountain areas could see gusts of at least 85 mph, it said.

This is a developing story. ABC News contributed to this story.