among whom are students and a professor at Kunar University, multiple sources have told the BBC. According to the Taliban government, 30 of the injured are university students. Pakistan's information ministry denied attacking the university and residential areas, saying the reports were fake. Reports of the Kunar attacks come several weeks after a Pakistani air strike on a drug rehabilitation centre in the Afghan capital Kabul which, according to the UN, is now known to have killed 269 people. A professor who was teaching at Kunar University told the BBC he had heard terrifying explosions across the university campus. A statement from Afghanistan's higher education ministry said the university's buildings and surroundings had suffered extensive damage. Hundreds of people have been killed or injured in cross-border fighting between Pakistan and Afghanistan in recent months. Over the past few weeks, following Chinese mediation which resulted in talks between the two sides in Urumqi in early April, a fragile ceasefire had largely held. Pakistan - which has also been operating as a mediator in the war between Iran and the US - has previously said its air strikes target militant hideouts in Afghanistan. (BBC)