Stone throwers who target buses in Derry have been told to think about the serious consequences of their actions.
Translink say there were two incidents - in Strathfoyle and Galliagh - on Monday night when buses were attacked.
A Translink spokeswoman says an investigation is underway into both incidents.
“Translink can confirm that there were two incidences of buses being attacked on Monday night (February 28) in the Strathfoyle and Galliagh areas around 8.30pm. Windows were broken in both cases but no injuries were sustained by drivers or passengers.
“Translink is working with the PSNI and community representatives to investigate these incidents.“
Strathfoyle Sinn Fein councillor Paul Fleming says those behind such incidents are attacking the wider community.
“Those people involved in these actions need not only to consider the consequences of the physical damage they could cause and their repercussions but also the disruption to their own community that attacking a bus causes.
“Strathfoyle has many residents that depend on affordable public transport to get to and from the city centre and the removal of this service would cause untold hardship.
He says the onus was now on the community to “support Translink in helping to deliver a safe affordable service to the Strathfoyle Estate by using any influence with the young people involved to desist immediately.”