ISLAMABAD: Allama Iqbal Open University (AIOU) on Tuesday held a condolence reference for its employee Gulzar Ahmed who died here last week after being stung multiple times by a swarm of bees. Forty-five year old Ahmed, a gardener at the campus university was doing his work when a beehive on a nearby tree fell and a swarm of bees attacked him and five other gardeners. He had left behind a widow and three children.