NORTH WAZIRISTAN: Two brothers were killed and a passerby was injured when masked men opened fire from a car in Mirali town of the North Waziristan tribal district here on Saturday. Local residents said that gunmen opened fire from a moving car on two brothers namely Ziauddin, 28, and Mohammad, 10, riding a motorcycle. They were proceeding from the Mirali Bazaar to Hormez village. A passerby was also caught in the fire and received bullet injuries. Witnesses said that the attackers escaped while firing in the air. The police reached the scene and started investigations. Meanwhile, three people, including two children, were killed and seven others were wounded in a gas cylinder blast near Mirali town on Friday night.