Horror as 12 killed and 20 injured as huge car bomb rips through crowded Pakistani refugee camp Device explodes at Jalozai camp on outskirts of northern city of Peshawar Most casualties were families displaced by army's battle with the Taliban Peshawar is on border of tribal area - Taliban's main sanctuary in Pakistan Twelve people were killed when a car packed with explosives blew up inside a refugee camp in northwestern Pakistan. At least another 20 people were injured when the device exploded as hundreds queued for food today at Jalozai camp on the outskirts of the northwestern city of Peshawar. The camp mainly hosts Pakistanis who have been displaced by fighting between the army and the Taliban on the border with Afghanistan. Attack: Twelve people were killed in the car bomb attack on the Jalozai refugee camp near Peshawar Casualty: Pakistani rescue workers carry a victim of the blast away to a local hospital. Hundreds of people live in the camp for internally displaced people in north-western Pakistan Fighting: The bomb exploded as families were queuing up at to receive food at the camp Most of the casualties were from the Bajur and Khyber tribal areas along the Afghan border, the police said. The army has carried out operations against the Pakistani Taliban in both of those areas. Many of the camp's residents get rations from the United Nations' World Food Program. It is unclear whether the attack will disrupt the group's operations there because of safety concerns. Peshawar is located on the border of the tribal region - the Taliban's main sanctuary in the country - and has been hit by scores of bombings in recent years. The Taliban has been waging a bloody insurgency against the government in an attempt to establish an Islamic state and end Pakistan's cooperation with the United States in fighting militancy. The militant group withdrew an offer of holding peace talks with the Pakistani government this week, saying officials did not seem serious about sitting down at the negotiation table despite comments to the contrary. Battle: Most of those killed were displaced from tribal areas near the border with Afghanistan where the Pakistani Army has been fighting the Taliban