Interstate 80 eastbound from Laramie to Cheyenne remains closed to commercial vehicles following a morning accident involving two semitrailers.

Sgt. Stephen Townsend of the Wyoming Highway Patrol says it's still unclear how many people died in the fiery accident this morning. He says one eastbound semitrailer rear-ended a slower-moving rig at about 5:40 a.m. near Buford.

The impact was severe enough that both van type trailers were breached and their load of empty dog food sacks and large rolls of possibly flooring covered the roadway.

Townsend says while the interstate remains closed to commercial vehicles lighter vehicles are being allowed to proceed eastbound to Cheyenne via Happy Jack Road. Townsend says it's unknown how long the eastbound interstate lanes will remain closed.