A man accused of murdering a Brisbane bus driver when he set the vehicle alight has faced court today on three new attempted murder charges.

Anthony Mark Edward O'Donohue, 48, allegedly torched the bus at a Moorooka stop in late October, killing 29-year-old driver Manmeet Alisher.

O'Donohue had already been charged with 11 counts of attempted murder for the passengers who were on the bus at the time.

Onlookers had to break through the back doors of the bus to get the passengers out.

Bus driver Manmeet Alisher was killed in the attack. ( Facebook: Manmeet Alisher )

Police announced on Tuesday that he had been charged with a further three counts, with the case mentioned in the Brisbane Magistrates Court today.

"These new charges have been laid as a result of police identifying and speaking with three additional passengers," a police spokesperson said in a statement.

It is alleged O'Donohue threw an "incendiary item" at Mr Alisher as passengers were boarding on Beaudesert Road.

Officers earlier said while there had been "no apparent motive", a link to terrorism had been ruled out.

O'Donohue did not appear in person when the matter was mentioned in court today.

His next court appearance will be on February 2.