in san francisco -- an early-morning fire right here at 6th and minna. a very alert police officer spotted the flames first, immediately all called the fire department -- immediately called the fire department. no word of injuries. >>> vandals are targeting gas stations for a rather unusual reason. it may be part of an oil protest. kraig debro joins us with surveillance video of the culprits in action. good morning, kraig. >> reporter: good morning. according to a note these people left behind. it's part of the pro set of the bp -- protest of the bp spill. what's happened at three gas stations that we know of is these people have chained together gasoline nozzles. i want to show you a note that's left behind. it's rising tide. they are acting against oil that kills humanity and kills the plant. we think they meant planet, but it came out plant. this is the action at 4th and bryant. there are three men walking on the property and casually showing the -- throwing the fliers on the property. and then there's others chaining the nozzles together at the pump