Gunmen on a motorcycle shot and critically wounded a Lebanese sheikh who supports the Shia militant Hezbollah group in the northern city of Tripoli on Tuesday, security sources said.
Saadeddine Ghiyyeh, an official in the Islamic Action Front, was shot multiple times in his car as he was leaving home.
A photo on the National News Agency's website appeared to show Ghiyyeh lying face down in his car with a head wound.
Tripoli has seen on-off clashes between Sunni Muslim militants who support a revolt against President Bashar al-Assad in neighbouring Syria and Lebanese members of Assad's own Alawite sect, which is an offshoot of Shia Islam.
Ghiyyeh is a Sunni, but supports Hezbollah, and is close to prominent pro-Assad figures in Tripoli. This is the second attempt on his life. In September, he was lightly wounded when his car exploded moments after he parked it.
On 23 August, twin bomb blasts outside a Sunni mosque in Tripoli killed at least 42 people and wounded hundreds in the deadliest bombing there since Lebanon's own 1975-90 civil war.
A week earlier, a huge car bomb killed at least 24 people in a Hezbollah-controlled part of Beirut.
Lebanon's political and sectarian divisions have widened since the Syrian conflict began with peaceful protests against Assad in March 2011 and later descended into full-scale warfare.
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