Earlier reports said exchange of gunfire in a corridor of the parlaiment has injured a security guard in the parliament.
Reports suggest that a number of gunmen (possibly three) are involved in the attack.
Witnesses say shooting is still being heard in the parliament. A bullet has been fired at the journalists’ zone.
Some lawmakers say the injured security guard has died. Tasnim could not independently verify the authenticity of the report.
0607 GMT: Tasnim reporter at parliament site said the lawmakers have been locked in the parliament’s hall.
Shooting seems to have ended, but the assailants have not been arrested so far.
0630 GMT: Tasnim reporter inside the parliament said four security guards have been shot in the incident, while one of them have lost his life.
0632 GMT: The attack has been carried out by three gunmen, who are still inside the parliament building. Two of them are armed with AK-47 assault rifles, and the third one has a handgun.
0645 GMT: The four injured at the parliament included two ordinary clients, a service staffer, and the security guard, who is said to have died.
0654 GMT: In latest development, Rapporteur of the Parliament's National Security and Foreign Policy Commission Hossein Naqavi Hosseini told Tasnim that gunfire still continues, but the security forces have the situation under control.
0657 GMT: In the meantime, Mehdi Kiayee, the head of public relations department of the parliament said that an open session of the parliament is being held in normal conditions.
All roads to the Parliament in downtown Tehran have been closed.
0727 GMT: Interior Minister Abdolreza Rahmani Fazli told reporters that an emergency session of the Tehran Province Security Council is going to be held. He declined to provide more details.
0732 GMT: One of the gunmen who had gotten out of the parliament building had to go back inside after facing a police blockade. Terrorists are now firing shots to the Parliament’s outside periphery.
0751 GMT: One of the security forces is appearing in a front window of the parliament.
