The trucks which were torched overnight. Photo: Caitlin Barr, Radio 6PR
Police and fire crews were called to a Malaga commercial yard on Thursday morning where three trucks - reported to belong to the president of the Rebels motorcycle gang Nick Martin - had caught on fire.
Emergency services arrived at the Glyde Street premises around 3am to find three the vehicles ablaze on a block surrounded by barbed wire fences.
One truck was destroyed and the other two severely damaged.
Mr Martin visited the site twice on Thursday and told Channel Seven's Grant Wynne "Your guess is as good as mine", when asked who might have set his trucks alight.
The fire is being treated as suspicious and arson squad officers are investigating along with the gang crimes squad.
Meanwhile, a liquor store on Warnbro Sound Ave in Warnbro was held up by a masked man on Wednesday night. The man threatened staff with a knife and fled with cash and a bottle of alcohol.
A 37-year-old Warnbro man has been charged with armed robbery and will appear in court on Thursday.
Police finally caught up with a man who allegedly robbed a Beaconsfield delicatessan with a metal pole in December.
A 21-year-old Armadale man will appear in the Fremantle Magistrates Court, also on Thursday.
Comment has been sought from Mr Martin.