Dozens of people have been killed by Israeli strikes in Lebanon, including 20 who died after a strike flattened a multi-story residential building in central Beirut overnight, according to Lebanese officials.

The strikes, which destroyed an eight-story building and left a crater in the ground, were the fourth in Beirut in less than a week.

Israeli strikes killed at least 47 people in eastern Lebanon on Thursday, a Lebanese official said, pressing the campaign against the Iran-backed Hezbollah group as a U.S. mediator sought to advance ceasefire talks in Israel.