BRISBANE City Council says bus services will return to normal tomorrow after a gas cylinder exploded at the Virginia depot in the city's north yesterday.

It's the second such incident involving a compressed natural gas (CNG) fuelled bus in four years the first occurred during refuelling in 2008 and injured five workers.



Lord Mayor Graham Quirk said today this one involved a "rogue'' cylinder and only 33 buses would need to remain off the road.



``It is recommended to us if we reduce the gas pressure as a safety precaution on our gas buses that we will be able to get back to normal services tomorrow,'' he said.



``People can catch buses with confidence knowing that the services will run.''



Cr Quirk said the investigation was continuing.



``We have as a safety precaution stood down about 33 buses which were together with that batch of cylinders,'' he said.



Almost half of the council's 1000-plus bus fleet is CNG-fuelled.



The investigation into the 2008 incident resulted in a new maintenance regime and ensured filling systems met the specifications of the manufacturer.

For more information visit the TransLink website or phone 13 12 30.

Originally published as City's bus services to return to normal