Criminal gangs in Melbourne put on notice after firebombing attacks

Detectives from three separate squads have joined forces to investigate at least 11 incidents of arson in recent weeks, including the torching of a Collingwood supermarket. Subscribe to 7NEWS Australia for the latest breaking news video » Connect with 7NEWS online: Visit » 7NEWS Podcast » Facebook » Twitter » Instagram » 7NEWS combines the trusted and powerful news brands including Sunrise, The Morning Show, The Latest, and , delivering unique, engaging and continuous coverage on the issues that matter most to Australians. Watch 7NEWS nightly at 6pm and weekdays at 11:30am and 4pm on Channel 7 and 7plus. #7NEWS #BREAKINGNEWS