Tehran, May 24 (IANS) Two people were killed Tuesday in a blast at a oil refinery in southern Iran, Xinhua reported.

 
 The blast occurred when Iranian President Mahmoud Ahmadinejad was visiting the Abadan refinery to inaugurate a gasoline project. The refinery is in the port city of Abadan. The president was safe.
 
 The blast was caused by a gas leak. Mehr news agency had earlier reported that 22 workers were injured.