Queensland police find car after teen's abduction

Police have found the car a Queensland teenager was forced into at gunpoint by an ex-partner.

Relatives of Billy-Anne Huxham, 18, told officers on Tuesday morning she had been forced into a car outside a Caboolture home, north of Brisbane.

It's believed her former partner Carl Garry Chapman, 32, broke into the house and threatened her with a gun before taking her with him. He is known to police.

A police spokeswoman says Ms Huxham contacted a relative on Thursday, but police still have serious concerns for her welfare.

They believe she was taken in a silver 2014 Mitsubishi Outlander with the Queensland registration 789VNI.

The have now found that car and their inquiries continue.

Detective Acting Inspector Steve Windsor said guns could be involved in the abduction.

"With the information we have that possibly firearms are involved, the public - if they could advise Crime Stoppers (of any sighting)," he said.

An investigation centre has also been set up at the Caboolture police station.