Translink said two youths attempted to hijack its FY 12 Ulsterbus service in the Carnhill area of Derry at around 6.30pm on Wednesday.One of the youths stood in front of the bus to stop the vehicle while the other attempted to force the doors open.The bus operator said there was a small number of people onboard.A Translink spokesperson said: "The driver continued on the route and alerted the PSNI who attended the scene."Sinn Féin councillor Tony Hassan condemned those behind the incident, he said: "Anyone I have spoken to is at a loss as to the rationale behind the attempted hijacking of the bus."This must have been a very shocking experience for the driver and any passengers on board at that time.""And it comes just two months after an incident in Ballymagroarty when a device was placed on a bus."At the end of last year dissident republicans were blamed for placing a bomb on a bus and ordering the drive to take it to Derry's Strand Road police station.The woman driver was hailed a hero for getting the passengers off the bus and raising the alarm.Councillor Hassan added: "Whoever is behind this latest attempt needs to wise up."The people of the area do not want this sort of stuff happening."A spokesman for the PSNI added: "Police received a report of an incident involving a bus in the Carnhill area of Derry."It was reported that at approximately 6.25pm a male stepped in front of a bus in the area and a second male attempted to open the door of the bus."The driver of the bus did not stop. No entry was gained to the bus and no damage was caused."