Esmail Heydari, an Iranian documentary maker, has been killed in Syria in an ambush by the jihadist Al-Nusra Front, Iranian news agency ISNA said Friday, without giving further details.
On Wednesday, the Fars news agency said another Iranian film maker, Hadi Baghbani, was killed as he accompanied Syrian troops on an operation against rebels.
It was not known for what media the two men worked.
Iran is one of Syria's major allies.
Last September, a journalist working for Iran's English-language Press TV was shot dead by a sniper in Damascus.