What does it mean when your peugeot partner won't start and the hazard warning lights come on automatically?

Peugeot partner 2.0 HDI 2002 won't start and the hazard warning lights come on automatically when I turn the ignition. What could be the reason?|||I am unfamiliar with the car but that is typical behavior for an anti-theft system, a malfunction is making the car think its being stolen|||someone tryed to like open the door wen the door was locked so now it keeps thinking its getting stolen all the time because the person pulled so hard