A suicide car bomber killed three people at a petrol station in a stronghold of the Shi'ite militant Hezbollah movement on Lebanon's northern border on Saturday, the latest sign that Syria's civil war is spilling over into its small neighbor.
The blast occurred in the town of Hermel at the northern end of the Bekaa Valley, an area populated mainly by Shi'ite Muslims among whom Hezbollah draws its support.
Lebanon's National News Agency (NNA) cited witnesses who said the perpetrator entered the gas station and asked to buy fuel before detonating the bomb, leaving a meter-deep hole in the ground and setting the station and nearby cars on fire.
Images broadcast on Hezbollah's Al Manar television showed fire raging beside a severely damaged petrol station as well as emergency vehicles and security forces at the scene.
A security source told Reuters that, besides the three dead bystanders and the dead bomber, 28 other people had been wounded in the blast.
There was no immediate claim of responsibility but Saturday's blast fitted a pattern of attacks by rival sectarian groups on each other's strongholds that has been amplified by Syria's civil war. Another suicide car bomb killed three people in Hermel last month.
Lebanon's caretaker interior minister, Marwan Charbel, told Reuters by phone that the situation in Lebanon was "unstable and getting worse every day".
"This matter is very, very dangerous," he said. "It is bigger than the security apparatus."
Suicide bombers often use stolen vehicles, and Charbel said up to 400 cars had been stolen in Lebanon in the last six months.
"This is a strange path for Lebanese, because most of the explosions we see are carried out by Lebanese," he said.
Saturday's blast happened near a building that houses a charity connected to the late Shi'ite Grand Ayatollah Mohammad Hussein Fadlallah. Fadlallah, who died in 2010, was not a member of Hezbollah.
Shortly after the explosion in Hermel, a bomb went off near an Al Manar office in the Beirut neighborhood of Ouzai, a security source said. It was not clear whether the Hezbollah-run television station had been targeted or whether anyone was hurt.
Hezbollah-run areas are frequently hit by bomb and rocket attacks claimed by Sunni militants. Four car bombs have exploded in Hezbollah's stronghold of south Beirut since July. A pair of suicide bombings at the Iranian embassy in November killed at least 25 people including an Iranian diplomat.
Hezbollah has sent fighters and advisers to aid President Bashar Assad, a member of Syria's Alawite minority, which is an offshoot of Shi'ite Islam. Both Hezbollah and Assad are supported by Shi'ite-ruled Iran.
Hezbollah's intervention in Syria and the steady flow of Lebanese Sunnis joining the anti-Assad rebels have both fueled sectarian strife in Lebanon, which has taken in more than 900,000 refugees from the Syrian civil war.
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