Parents are seeking answers after a bus company dropped school children at a road block during the height of the Peregian Beach bushfire emergency, on Queensland's Sunshine Coast yesterday.

Key points: Parents claim multiple buses dropped the students at a road block on David Low Way

Parents claim multiple buses dropped the students at a road block on David Low Way A spokesperson for the Education Department said no official complaints had been received

A spokesperson for the Education Department said no official complaints had been received TransLink said it is investigating the matter

A number of Coolum State High School families have contacted the ABC saying their children phoned them to get picked up from David Low Way.

The road had been closed in both directions as a fast-moving fire raged in bushland nearby.

Other students decided to walk home.

Derek Cairns, a father of one of the children and also a former school principal, said his son was dropped off at the road block — and then the bus left.

"There was a traffic jam, just before they got to school, the bus driver opened the door and all the kids piled off," he said.

"They all went for a look, sort of thing, and some kids started heading back towards town, some started heading towards school because no one really knew, the rest of them were in the dark.

"[My son] ran into one of his other teachers who said 'well if you can come and get a parent to get you, if not just hang around here'."

Space to play or pause, M to mute, left and right arrows to seek, up and down arrows for volume. Watch Duration: 13 seconds 13 s A bushfire burns at Peregian Beach on the Sunshine Coast

Mr Cairns believed a duty of care had not been met.

"It's easy with hindsight to say, but I think the kids should have been made to stay on the bus until someone knew what was going on, not just open the door and let them all off," he said.

"Because you just don't know what the risk was.

"I think there was a slip up there, in a sense the bus company should have [used] mobile radios to talk to their buses.

"You'd think there'd be some kind of messaging going on, to say 'I can't proceed with these kids to this destination'.

"You still have that duty of care to say 'well hang on a sec, I don't just want to let these kids all off'."

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Joanne McKeown — a mother who was driving her children to school — said was waiting with four buses at the road block for about half an hour before she saw the drivers let the students out and then leave.

"I don't know if they were messaged at the same time by someone, but all the drivers seemed to let the kids off these buses at the same time," she said.

"One girl, who knew my daughter, told her she was walking home."

The fire broke out about 6:30am.

Coolum Beach State High School was closed, but many students were already on their way to school.

Police made an emergency declaration at 7:54am and homes just hundreds of metres away from the school were evacuated.

The school posted to social media that bus diversion would be in place with students dropped off at Coolum State School and Peregian Springs State School.

An Education Department spokesperson said in a statement that no community members had complained about the bus diversions, but reiterated, it "holds the health and safety of students and staff as its number one priority".

State transport organisation TransLink said it was working with private bus operator Buslink, which runs the services, to investigate the matter and "understand the circumstances".

It said there were bus diversions and some stop changes in place yesterday due to the bushfire emergency.