Iranian Foreign Ministry Spokesman Ramin Mehmanparast condemned the recent attack on the headquarters of the pro-government broadcaster al-Ekhbaria TV channel near the Syrian capital of Damascus, the semi-official ISNA news agency reported on Thursday.

Mehmanparast called on the international communities and organizations, which are the defender of free speech and press rights, to adopt a clear stance in condemning this inhumane act, said the report.

Three journalists were killed early Wednesday morning when armed groups attacked the headquarters of the al-Ekhbaria TV in a suburban area of Damascus.

The groups fired RPG shells on the building before booby- trapping the entire building and blowing it up, Syria's state TV quoted Emran al-Zoubi, the minister of information, as saying.