A pickup truck ran a stop sign and crashed into a DART bus in Oak Cliff early Friday.
Four people were injured in the incident, which happened about 5:45 a.m. at Fordham and Romona in East Oak Cliff.
The bus was not carrying any passengers when it was hit. The bus went over the curb before slamming into a tree and coming to a stop.
DART said the bus driver and three people in the pickup were taken to the hospital with serious injuries.