The Glider service route in West Belfast has been withdrawn due to two separate attacks, a union has said.
Unite the Union said that the attacks happened on Monday and the service will now turn at the Michael Ferguson roundabout and not travel to the Colin Connect terminus.
They said that an urgent meeting is to be held on Tuesday.
Unite's Davy Thompson, said: "These reprehensible attacks threatened the lives of both the travelling public and our members.
"The drivers and Custom Revenue Protection Officers (CRPOs) have been left with no choice but to end the Glider service at the Michael Ferguson roundabout – short of the terminus at Colin Connect – to guarantee the safety and welfare of all concerned.
"We recognise that, unfortunately, this decision will result in huge disruption and suffering for the local community who use the Glider service but these attacks threaten life and limb – the responsibility for this outcome lies entirely at the feet of those who attacked the vehicles.
"Unite will be seeking urgent meetings tomorrow with local community representatives, the PSNI and management to seek assurances that these attacks will stop. If they do not, the withdrawal is likely to become a suspension – with the same approach taken as with attacks on Metro services.
Chair of the Metro and Gliders’ drivers’ Unite union branch, Michael Dornan, said that both attacks happened in Lagmore.
In one incident, he said, 70 young people were put off for allegedly not paying.
He said: "Today, there were two separate attacks on Glider services – both at Lagmore by large numbers of youths. In the first incident, a window was broken but thankfully did not give way - saving a young female passenger from what would have been a very serious injury. Nonetheless the girl was left in a state of shock.
"In a second attack a group of approximately 70 youth had to be put off for not paying – they then viciously attacked the Glider and broke windows.
"We believe passionately in public transport and we are rightfully proud of the Glider service but we have to put first the safety and security of drivers, CRPOs and the travelling public. We know that the people of the area – our customers – will suffer but we have been left with no choice."
