A PIA Pakistan International Airlines Airbus A320-200, registration AP-BLV performing flight PK-8726 from Riyadh (Saudi Arabia) to Multan (Pakistan), was enroute at FL350 when unusual noises developed on board which were identified to come from one of the aircraft's main doors. The flight crew decided to divert to Karachi (Pakistan), where the aircraft landed safely about 2:40 hours after departure.
The passengers, part of them were terrified and considering to travel to Multan by road, were rebooked onto another flight.
The occurrence aircraft returned to service after 23 hours on the ground in Karachi.