More than 30 people were injured Wednesday when a public bus crashed into a building just outside Baltimore, Maryland. One critically injured patient was extricated and transported to a hospital.

First responders arrived at the scene after a Maryland Transit Administration bus crashed on Reisterstown Road in Pikesville. Baltimore County officials reported that numerous civilian vehicles were involved in the collision, including one that overturned onto its roof.

Authorities stated that one person was trapped inside the bus and another occupant in a car was rescued by responding crews. A building engineer was en route to assess the damage.

A second mass-casualty incident alarm was issued shortly after the crash. Maryland Gov. Wes Moore confirmed he was monitoring the situation and stated he was in close coordination with local officials to provide support.

Officials closed roads near the crash site as crews responded and urged drivers to seek alternate routes. The Baltimore County Fire Department shared images of the scene, showing the bus involved in the crash with civilian vehicles surrounding it and one vehicle overturned.