Three persons, including a woman, were killed and five were injured as two gangs fired at each other in broad daylight on the streets of Delhi. Shots were fired from two SUVs - a Scorpio and a Fortuner - at a busy marketplace at Burari in north Delhi. The police said members of two local groups, the Gogi gang and the Tillu gang, fired at each other from their cars around 10.15 am.