Large explosion in Tehran square where demonstrations  are happening: Iranian state television

DUBAI, Mar 13: A large explosion struck Iran’s capital, Tehran, on Friday at a square filled with demonstrators, Iranian state television reported.
The explosion hit Ferdowsi Square, just down Enghelab Street from Tehran University, the epicenter of ongoing Quds, or Jerusalem, Day demonstrations.
The cause of the blast was not immediately known. Israel had warned it could strike in the area just before the blast.
Intense airstrikes began landing around Tehran just before rallies were to begin for the annual Quds Day event in support of Palestinians. Despite the attacks, thousands of people took to the streets chanting “death to Israel” and “death to America.” (AP)