Pittsburgh Police, Fire and EMS responded to a report of a multi-vehicle crash in the outbound lanes of the Liberty Tunnels around 1:55 p.m.
Per the initial investigation: A vehicle tried to make a lane change inside the tunnels, clipped one vehicle, swerved into another lane and struck a second vehicle, causing it to roll.
Three people in the vehicle that rolled were transported to UPMC Mercy with minor injuries. A dog in the vehicle was not injured.
The occupants of the vehicle that was clipped were not injured.
The driver of the car that initiated the crash was not injured, but a passenger suffered a broken nose.
The tunnel was closed while crews attended to the injured and processed the scene, but it has since reopened.
Police are investigating.