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, and struck the middle of the country where more than 20 people were killed.

Israeli airstrikes killed at least 46 people in the Gaza Strip in the past day, including 11 at a makeshift cafeteria in an Israeli-declared humanitarian zone, medics said. In Lebanon, warplanes struck Beirut's southern suburbs and killed 33 people elsewhere in the country on Tuesday.

An Israeli strike on a home in northern Gaza killed three siblings aged 6 and under, among at least six people killed in airstrikes in the war-ravaged territory, Palestinian medics said. In Lebanon, an Israeli airstrike on an apartment building south of Beirut on Wednesday killed at least six people and wounded 15, the Health Ministry said.