UPDATE (5:38 p.m.):

No students were on the bus involved in Monday's accident on I-25, according to Tanya Southerland of the Natrona County School District. 

Southerland added that she does not currently have information on the condition of the bus driver. 

The Wyoming Highway Patrol has not yet returned a phone message. We have not heard any reports of injuries resulting from the crash.  

"Our thoughts are with all those involved," Southerland told K2 Radio News.

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Traffic has reportedly come to a standstill as emergency workers respond to a crash involving a school bus in the westbound lanes of Interstate 25 just east of Beverly Street in Casper.

It was not immediately clear whether anyone was injured, or how many vehicles were involved, though reports indicate several vehicles were damaged.

Eyewitnesses reported state troopers, fire trucks and at least two ambulances at the scene.

This story will be updated as we are able to report further details.

Credit: Rich Burk