The Forbes Avenue bridge over Fern Hollow Creek in Pittsburgh's Frick Park collapsed Friday morning, with several vehicles, including a Port Authority bus, on the span at the time.

Ten injuries were reported in the collapse, which happened in the area of Forbes and South Braddock avenues near the city's Point Breeze neighborhood. Four people were taken to area hospitals.

One person has since been released from the hospital and officials from the Port Authority said one person who was on the bus was checked out at the scene and left, however, two hours later the person complained of injuries and was taken to an area hospital.