Four people have been killed in southern Michigan as powerful storms that produced at least one tornado on Friday reduced homes to rubble, sent parts of roofs flying into the air and left a trail of debris hanging from power lines.

The Oklahoma State Patrol says it closed a highway south of Sallisaw after a barge struck a bridge over the Arkansas River.

Six teenage girls on a high school lunch break were killed when their small car with only four seats collided with a large truck hauling rocks, the Oklahoma Highway Patrol said Wednesday.