By day’s end, the death toll from the twin blasts stood at 23, with 147 people injured, according to the Health Ministry. Iran’s state-run Islamic Republic News Agency (IRNA) confirmed that the country’s cultural attache, Ibrahim Ansari, was among the dead.
The long-running Syrian civil war has inflamed sectarian tensions across the region, as a largely Sunni insurgency backed by Saudi Arabia and Qatar battles to oust President Bashar al-Assad, who has received support from Shiite fighters from Iran and the Lebanese militant group Hezbollah, an Iranian ally.
In Lebanon, where political divisions mirror those over the border in Syria, tit-for-tat bombings have killed scores in Shiite and Sunni neighborhoods this year, even as the fragile country struggles to insulate itself from the violence next door.
The Abdullah Azzam Brigades, the al-Qaeda-linked Sunni militant group that asserted responsibility for Tuesday’s attack, made clear that the Syrian war was the motive and demanded that Hezbollah pull out its fighters.
“The attack on the Iranian Embassy in Beirut was a twin martyrdom operation by two heroes of the Sunni in Lebanon,” Sheik Sirajeddine Zuraiqat, a cleric affiliated with the group, said in a message posted on Twitter.
Majid bin Muhammad al-
Majid, the Azzam Brigades’ leader, called in August for Sunnis in Lebanon and Syria to unite against Hezbollah, which he described as the “party of Iran.” The Azzam Brigades has asserted responsibility for firing rockets at Israel in the past.
Outside the embassy Tuesday, forensic experts in white overalls picked through the evidence beyond a security cordon. Smoldering cars lined the street, along which trees were scorched.
Black-shirted gunmen affiliated with the Amal political party, an ally of Hezbollah, patrolled the largely Shiite neighborhood. In a statement, the party described the attack as a “spiteful act” that had targeted innocent civilians.
Rabih Istanbuli, 36, stood on the blood-spattered steps of the furniture store he manages. He was in his office, 100 yards away, when the first blast hit, an explosion that the army said was caused by an 11-pound bomb.
The second — involving 110 pounds of explosives in a jeep — occurred minutes later as he ran to check on his shop.
“The glass just surrounded me,” Istanbuli said. “I saw some people falling down from their balconies because when they heard the first bomb, they went out. . . . There were a lot of dead people, black from the fire.”
A 23-year-old student who lives less than 100 yards from the site said she was in the kitchen when she heard the first explosion about 10 a.m.
The student, who agreed to be identified only by her first name, Hiba, said she ran to her balcony but was called back in by her maid, saving her from bearing the brunt of the second detonation, which blew in her windows.
Shattered glass covered her living-room floor.
“The political situation is going into a dark tunnel,” said Hiba’s uncle, Ibrahim, who had called in to check on his niece.
Lebanon has no government since the previous one collapsed in March, and elections have been postponed amid wrangling over electoral laws.
“There is no state,” said Jad Kobeissi, a 36-year-old dentist who lives a block from the embassy.
Few residents voiced doubt that the twin blasts were linked to the conflict in Syria. “I was worried one day something like this would happen,” Kobeissi said. “The embassy is an obvious target.”
However, some Lebanese politicians and the Iranian Foreign Ministry were quick to blame Israel, despite the Azzam Brigades’ claim of responsibility.
“The terrorist bombing in front of the Iranian Embassy in Beirut is an inhuman and vicious act perpetrated by Israel and its terror agents,” Marzieh Afkham, a spokeswoman for the Iranian Foreign Ministry, told IRNA.
Hezbollah also pointed a finger at its longtime enemy. Mohammad Raad, head of the group’s parliamentary bloc, said the attack echoed “the racist pattern of the Zionist enemy.”
But a close adviser to Israeli Prime Minister Benjamin Netanyahu linked the attack to Hezbollah’s role in Syria. “Israeli security gains nothing from bloodshed,” said Tzachi Hanegbi, a lawmaker and former intelligence minister. “I think it is a result of the tension in Lebanon following the decision by Hezbollah — or Iran forcing Hezbollah — to participate in Assad’s efforts to survive in Syria.”
The bombings are not the first in a Shiite area of Beirut. In August, an explosion in Hezbollah’s stronghold in the southern suburbs killed at least 21 people. That was followed eight days later by what was seen as a retaliatory attack on two Sunni mosques in the northern city of Tripoli, which killed more than two dozen.
Hezbollah had braced for attacks, imposing tight security during the Shiite holy day of Ashura last week, when the group’s leader, Hasan Nasrallah, made a rare appearance — and pledged to continue backing Assad in Syria.
Lebanese politicians condemned Tuesday’s bombings. “There is division in the country and tension, which is not helping in reducing the impact of the Syrian war on us,” lawmaker Alain Aoun told the MTV television station at the scene. “It’s causing problems, both socially and politically.”
At a snack shop and supermarket near the blast site, sales assistants wept as they served customers.
“This is too much. It’s devastating,” said Hanadi Nahhas, a 30-year-old employee. “The second bomb was so loud we thought it was an Israeli airstrike. Our delivery boy, Mohammed, was killed. He is just 16.”
William Booth in Jerusalem and Suzan Haidamous in Beirut contributed to this report.