Sunni Militants Claim Beirut Blast

An injured school boy receives treatment inside an ambulance at the site of an explosion near the Iranian cultural centre in the southern suburbs of Beirut, Feb. 19, 2014.

Lebanese army investigators gather next to burned and damaged cars at the site of explosions, in the suburb of Beir Hassan, Beirut, Lebanon, Feb. 19, 2014.

A Lebanese firefighter extinguishes a burned car at the site of an explosion, near the Kuwaiti Embassy and Iran's cultural center, in the suburb of Beir Hassan, Beirut, Lebanon, Feb. 19, 2014.

Lebanese firefighters extinguish a burning car at the site of an explosion near the Kuwaiti Embassy and Iran's cultural center, in the suburb of Beir Hassan, Beirut, Lebanon, Feb. 19, 2014.

A Lebanese army soldier carries two injured children away from the site of an explosion near the Kuwaiti Embassy and Iran's cultural center, in the suburb of Beir Hassan, Beirut, Lebanon, Feb. 19, 2014.

Lebanese civil defense workers carry an injured girl at the site of an explosion, near the Kuwaiti Embassy and Iran's cultural center, in the suburb of Beir Hassan, Beirut, Lebanon, Feb. 19, 2014.