At least six people have been killed and 15 injured in fresh Israeli airstrikes on Lebanon, according to officials and the state news agency.

A four-storey residential building was struck in the eastern city of Baalbek, where rescue teams are continuing efforts to pull people from beneath the rubble.

The Lebanese Health Ministry said six people were also killed and eight injured in separate strikes on two towns south of Beirut, Armon and Saadiyat.

Hezbollah said it fired rockets at a gathering of Israeli forces on Wednesday, describing the attack as a response to Israeli strikes on Lebanon.

The Health Ministry said at least 50 people have been killed and 335 injured in Israeli attacks since the latest escalation began.