At least four killed in bus-truck collision in Wisconsin

IXONIA, Wis. (AP) -- A tour bus collided head-on with a delivery truck Tuesday, killing least four people and injuring about a dozen, the sheriff's department said.

It wasn't immediately known how many people were on the bus.

Both drivers were among those killed, Jefferson County Sheriff's Capt. Kevin Stapleton said.

"There was no one that was not injured in this accident," he said.

At least one passenger was in critical condition at area hospitals. Ixonia is about 30 miles east of Milwaukee.