Beirut blast seen as omen of "dark era" for Lebanon While Lebanon is no stranger to explosions, since the country's 15-year civil war ended in 1990 they have largely taken the form of targeted assassinations, with the civilian lives lost as tragic collateral. But since Hezbollah has begun sending fighters to Syria to help President Bashar al-Assad battle a largely Sunni opposition, the civil war there has taken an increasingly sectarian turn and reprisal attacks on the Shiite movement in Lebanon have multiplied. Analysts cited Thursday's bombing as evidence that Iraq-style sectarian bombings have now reached Lebanon as Sunni-Shiite divisions widen. This is no longer targeted assassinations of political and militant figures with clear political ends. It's actually targeting the civilian population," said Imad Salamey, an associate professor of political science at Lebanese American University. We are seeing the Iraqization of Lebanon, a spillover from Iraq to Syria to Lebanon. This is massive, a potentially dark era, and God knows how it can be limited. In a televised speech from a secret location Friday, Hezbollah leader Hasan Nasrallah showed no sign of retreating from his decision to send fighters to Syria, a demand of the Syrian rebel groups that have threatened his movement. "If you believe that by killing our women, and killing our children, and killing our innocent, and destroying our areas we might back up from our vision and our stand, you're delusional," he said, adding that preliminary investigations by Lebanese authorities had found "takfiri" Muslim groups responsible, a term for Sunni extremists. Nasrallah said that if it is confirmed that the bombing was a retaliation for Hezbollah's role in Syria, he is prepared to double the number of fighters there. "If the battle with these takfiri terrorist people requires me and all of Hezbollah to go to Syria, we will all go to Syria," he said. If we have 100 fighters in Syria they will become 200, If we have 1,000 they will become 2,000, and if we have 5,000 they will become 10,000. Near the blast site in the neighborhood of Ruwais on Friday, investigators gathered evidence from the tangled wreckage and the number of fatalities climbed to 21 as more corpses were pulled out, according to the National News Agency. The toll made it the deadliest bombing in Lebanon since former Prime Minister Rafiq al-Hariri's assassination in 2005. A Hezbollah lawmaker told local media that 24 people had been killed, which would make it the most lethal since Lebanon's civil war. A policeman at the scene who spoke on the condition of anonymity because he is not authorized to speak to the media said that an initial investigation had found that two people were in the vehicle when it stopped in the middle of the street. The driver fled and the passenger was killed in the explosion, he said. In a video posted online after the first blast last month, which wounded more than 50 people, the group that claimed responsibility, the Battalions of Aisha Um al-Mumineen, said the goal was to let Hezbollah "taste what the children and women of Syria tasted from your betrayal." The group's name, referencing a wife of the prophet Muhammad who is revered by Sunnis but is a controversial figure among Shiites, has sectarian undertones. In a second video posted online Thursday, the group threatened further attacks, but residents of the southern suburbs appeared undeterred. Gunfire rattled through the streets as the first funeral of a victim of Thursday's attack took place. Hamad Mokdad, 47, also known as Abu Mahdi and a member of a powerful Shiite clan, was helping rescue the wounded and trapped when he was electrocuted by a downed cable, family members said. "Abu Mahdi - congratulations for your martyrdom," read a banner across the street bearing his photograph and images of burning cars behind him. "Martyrdom is something sacred for us, and this will not stop," said his brother, Hussain Mokdad. "Not if it's 27 martyrs. Not if it's 27,000.