Police say they are clamping down on yobs causing problems for Hartlepool buses.
The Hartlepool Neighbourhood Police Team say they have received complaints with regards to youths misusing both bus shelters and buses in the town.
They say the incidents range from disruptive and annoying to potentially life threatening should something go wrong.
A spokesman said: "Officers will be actively patrolling areas where complaints have been received and where appropriate reviewing onboard bus CCTV in order to identify offenders.
"Anyone caught engaging in such behaviour will be dealt with robustly."
If anyone has information, or needs to report an incident, they can contact the police on 101.