At least four Optimum work vans went up in flames in a Long Island parking lot, Suffolk County police said Thursday.

The blaze broke out and spread to the vans shortly before 10 p.m. Wednesday in the Optimum parking lot on Industrial Road in Port Jefferson Station, dramatic photographs show.

Firefighters from Terryville Fire Department doused the flames before anyone was injured, police said.

Arson investigators are still working to determine the cause of the fire.