Emergency crews were on the scene after a vehicle crashed into a school bus in Middle River on Tuesday afternoon.
At just before 3:30 p.m., paramedics responded to the 2300 block of Eastern Boulevard for a report of a crash.
At the scene, crews found that a van had struck a school bus.
One patient in the van is trapped and injuries are said to be serious.
Motorists should use caution in the area.