Northern Beaches Police are appealing for public assistance after a car and motorcycle were set alight at Brookvale last year.

At 3.15am Monday, 17 August 2020, three people broke into the secure underground car park of an apartment building at Roger Street, Brookvale and poured accelerant over a Holden Commodore and set it alight.

Fire and Rescue NSW extinguished the fire but the car and a Harley Davidson motorcycle parked nearby were destroyed.

Detectives from Northern Beaches Police Area Command established Strike Force Gelfius to investigate the arson attack. Investigators have released CCTV of people they would like to speak to as part of the investigation.

The first person is shown wearing a green camouflage hooded jumper, black pants and black Nike sneakers. The second person is wearing a black hooded jumper, navy track suit pants, and white sneakers. The third person is shown wearing a black hooded jacket, black pants, and black shoes.

Investigators have also released images of a fourth person, a man who they believe may be able to assist with inquiries. He is described as being of Caucasian appearance with a medium build. He is shown wearing a grey and orange Fox hooded jumper, grey track suit pants, and a white cap.

Anyone who may have information that can assist should contact detectives at Manly Police Station, or Crime Stoppers on 1800 333 000.

Image and video: NSW Police