An unidentified man was shot dead by Tehran police on Saturday after carrying out a knife attack at a metro station, Iranian state television reported.
The assailant, believed to be in his forties, struck a clergyman with a knife following a dispute, according to the head of emergency and ambulance services Hussein Kulawand.
Other passengers tried to intervene to stop the fight, which led to the injury of another man, Kulawand said.
The attacker sustained injuries after he was shot by police and died later of his wounds, the deputy governor of the Shar-e Rey district in south Tehran Hadi Tamhidi said, adding that the man appeared mentally "unbalanced".
Traffic at the Shar-e Rey station returned to normal following the incident, a spokesman for the metro said.
