Massive consecutive strikes hit Beirut's southern suburbs from late Saturday into Sunday, Reuters eyewitnesses said, sending booms across the city and sparking flashes of red and white for nearly 30 minutes visible from several kilometers away, Paralel.Az reports citing Reuters.

The strikes came after days of bombing by Israel of Beirut suburbs considered strongholds for Iran-backed armed group Hezbollah, killing its leader Sayyed Hassan Nasrallah, and possibly his potential successor.

A Lebanese security source said on Saturday that Hashem Safieddine, the potential successor, had been out of contact since Friday, after an Israeli airstrike near the city's international airport that was reported to have targeted him.

The Israeli military said it eliminated Nasrallah in a strike on the group's central command headquarters in Beirut on Sept. 27. Hezbollah confirmed he had been killed.

Lebanese security sources said Israeli strikes since Friday on Dahiyeh, a residential area and Hezbollah stronghold south of central Beirut, have kept rescue workers from scouring the site of Thursday night's attack.

Hezbollah has made no comment so far on Safieddine.

His loss would be another blow to the group and its patron Iran. Israeli strikes across the region in the past year, sharply accelerated in the past few weeks, have decimated Hezbollah's leadership.