Hezbollah is considering a US-Israeli ceasefire proposal, sources told CNN, as diplomatic efforts to end the conflict between Israel and the Lebanese militant group intensify.

The Israeli military pounded Beirut's southern suburbs with airstrikes on Tuesday, mounting one of its heaviest daytime attacks yet on the Hezbollah-controlled area after the defense minister ruled out a ceasefire until Israeli goals were met.

Hezbollah strongholds in Beirut's southern suburbs were hit by at least 12 heavy airstrikes on Tuesday, security sources and eyewitnesses said, as Israel's newly appointed defence minister rejected any talk of a possible ceasefire.

Israel hit Beirut's southern suburbs of Dahiyeh on Saturday causing deaths, injuries and severe damages to the buildings in the region. Rescue teams are working to save those stranded in rubbles.

BEIRUT, Nov 15 (Reuters) - Iran will back any decision taken by Lebanon in talks to secure a ceasefire with Israel, a senior Iranian official said on Friday, signalling Tehran wants to see an end to a conflict that has dealt heavy blows to its Lebanese ally Hezbollah.

Lebanon is considering a U.S.-backed cease-fire plan while Israel launched new strikes in the area south of Beirut. Senior Lebanon officials are reviewing the proposal and it is based on the U.N. Security Council resolution 1701,

Israel launched more airstrikes on Hezbollah targets Friday, completely leveling a building in Beirut. The strikes come after a top Iranian official committed to support Lebanon as the U.S. continues to push for a cease-fire deal.

As a top adviser to Iran's supreme leader Ali Khamenei visited Lebanon for talks, Lebanese officials said a U.S. proposal for a cease-fire deal had been passed on to Hezbollah.