Tens of thousands of people gathered at a stadium in Lebanon's capital Beirut to mourn Hezbollah leader Hassan Nasrallah, in a public funeral nearly five months after he was killed by an Israeli air strike.

BEIRUT—As hundreds of thousands of people gathered for the funeral of slain Hezbollah leader Hassan Nasrallah in Beirut on Sunday, its current chief vowed to continue fighting Israel as the group projected its power despite an Israeli offensive that has left it weakened and in disarray.

The long-delayed funeral for Hezbollah’s leader Hassan Nasrallah is taking place Sunday, nearly five months after he was killed in a massive Israeli airstrike on the southern suburbs of Beirut.