Four children, aged 7 to 10, and an adult were injured in an explosion in the northwestern Pakistani city of Peshawar early on December 5, hospital and rescue officials said. Bilal Ahmad Faizi, a spokesman for the emergency rescue services, said an improvised explosive device went off on a busy road in Peshawar at 9:10 a.m. He said five people, including four children, were injured. Two of the children were in critical condition, Mohammad Asim, a spokesman for the Lady Reading Hospital in Peshawar, said. There was no immediate claim of responsibility for the attack.