WATCH: Police release CCTV as investigation continues into Port Kennedy fire

Specialist officers from the Police Arson Squad are ramping up their investigation into a suspicious fire at a business in Port Kennedy last month.

CCTV has been released of two people setting vehicles alight at the commercial premises at the intersection of Paxton Way and Fielden Way around 9.40pm on June 14.

Seven cars were destroyed, causing $200,000 worth of damage.

Police also want to speak to the drivers of a white Holden Statesman and a dark coloured Honda Accord that were seen in the area at the time of the fire.

Investigators urge the drivers of these vehicles, or anyone with any information or vision relating to this fire, to contact Crime Stoppers on 1800 333 000 or online via www.crimestopperswa.com.au.   

Rewards of up to $25,000 are available for information that leads to the identification and conviction of an arsonist.