THE LTA has released 12 new buses belonging to Nasese Buses Limited following an audit exercise yesterday.
Confirming this the authority's CEO, Naisa Tuinaceva, said the buses were released following the company's assurance that they would maintain high standards in compliance with the LTA's standards.
"They (bus company) has hired a qualified engineer to start implementing a quality assurance system based on LTA's requirement," Mr Tuinaceva said.
He said the other buses were still with the LTA and were yet to be audited.
"We are checking each bus very thoroughly. We want to ensure such incidents do not occur again."
Mr Tuinaceva earlier highlighted they would go beyond just inspecting buses to determine the causes of fire.
He said they would go behind the scenes, targeting those involved in the maintenance of buses.
This means drivers, electricians, mechanics and those who work in the garages will also be investigated for what the authority says can be "the reason behind the bus fires".
"Right now we are looking into other aspects. We want to know the cause of fires," Mr Tuinaceva said.