(Portland, OR) -- Portland Police are warning about suspects who tell drivers there's a false emergency to victimize them. Within a half hour Sunday afternoon, the suspect told one driver her gas tank was on fire. She pulled over and they stole her purse. The next victim was told their car was on fire, and when they pulled over the suspects stole the car. In the third case, the suspects tried to force the driver to pull over. The driver got around the suspects and left the scene. It was a vehicle similar to the other two incidents. Police say if something like this happens, get to a safe location to check your vehicle.