Police are investigating the death of Iranian opposition leader Mir Hossein Mousavi's nephew Ali Habibi, Tehran Police Commander Azizollah Rajabzadeh was quoted as saying by the Iranian Ilna news agency.
Police are investigating his nephew's death during clashes on Ashura Day in Tehran. The results of the investigation will be announced soon, he added.
Opposition supporters and police clashed on Ashura Day in Tehran. According to international news agencies, the riots resulted in the deaths of 15 people. Police arrested 300 people.