Natural gas lines of Basij Head quarters were set on fire after Basijie’s (paramilitary) locked themselves inside

At 0:05 in the video you can see the whole building exploding.

It is said that at least 5 from Basijies were killed.

Fires are burning in different parts of city.”

The Basij are paramilitary first organized by Ayatollah Ruhollah Khomeini in 1979. They were initially young men unfit for military service. Khomeini used them as cannon fodder in the human wave attacks against Saddam Hussein’s army in the Iran — Irag war. They were sent into battle as human waves.

For the rest of the story, see NJN Network Tehran On fire – Basij Headquarter blown up by protesters, basijies Killed

Video and quotes from LiveLeak