Hassan Nasrallah
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Hezbollah leader Nasrallah vows victory in Syria

The leader of the Lebanese Shia militant Hezbollah movement has promised his supporters they will prevail in Syria, where they are backing President Bashar al-Assad.

"This battle is ours... and I promise you victory," Hassan Nasrallah said in a TV address.

Syrian rebels in the besieged town of Qusair say they are under heavy bombardment from Hezbollah combatants.

The BBC's Jim Muir has more details.

The unverified amateur footage in this video was purportedly shot in Qusair.

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