AKIPRESS.COM - Armed men have opened fire at the Iranian parliament and the shrine of Ayatollah Khomeini in the capital, Tehran, causing a number of casualties, BBC News reported.

Heavy gunfire could be heard on an audio recording from inside the parliament chamber, and there are reports that a security guard has died.

Several people were injured at the shrine, dedicated to the founder of the modern Islamic republic.

One attacker blew himself up and there were two or three other gunmen.

Ali Khalili from the mausoleum's public relations office told IRNA news agency that one of the armed men detonated himself in front of a bank outside the mausoleum.

The Iranian Labour News Agency reported that two attackers had been arrested.

Five people were wounded at the shrine, and one person confirmed dead, it said.

It was unclear whether the attack at the parliament was ongoing.

MP Seyyed Hossein Naqavi-Hosseini told the Iranian Students' News Agency (ISNA) that three gunmen were still in the building, in MPs' offices.

Iranian rolling news channel IRINN said seven or eight people had been injured at the parliament by four attackers.