Police have released the image of a “distinctive” car as they continue to investigate the deaths of baker Todd Mooney and his daughter Kirra in a shed fire in Biggenden in southern Queensland.

Police were called to the fire at the Fenwicks Road property at about 12.20pm on December 20, where they found the bodies of the pair.

Todd Mooney Kirra shed fire deaths Kristen Leslie Olsen charged.
Police are calling on anybody who saw a white Barina with a solar panel on top to come forward. (Queensland Police)

Olsen is in custody and is set to appear in court today after an initial appearance on Saturday.

With the investigation still ongoing, police have released an image of a white Holden Barina wagon, with a solar panel on the roof.

Anybody who may have seen the car from 10am to 2pm between Biggenden and Bam Bam Springs on December 20 is urged to come forward.

Kristen Leslie Olsen
Kristen Leslie Olsen has been charged with murder. (Supplied)
Todd Mooney, 54, and his daughter Kirra, 10, were found dead after fire tore through a large shed at their home in Biggenden. (Nine)

A white Barina was found burnt out alongside a caravan and trailer following a police search previously.

Officers allege it was set alight the same day as the Mooney and Kirra died in the fire.

Anybody with information is urged to contact Crime Stoppers on 1800 333 000.

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