Israel has also continued to gather intelligence on Hezbollah's activities using surveillance drones, a Lebanese security source said. On Monday, Israeli drones flew over Beirut, Lebanon's south and its eastern Bekaa Valley, according to the source.

Israel targeted the chief of staff of Lebanon's Iran-aligned Hezbollah group in a strike in the capital Beirut's southern suburbs.

Israel on Sunday struck Lebanon’s capital for the first time since June, saying it killed Hezbollah’s chief of staff Haytham Tabtabai.

Israel braces for violent Hezbollah revenge attacks after major leader killed in Beirut as Gaza mourns another four killed across the Palestinian Strip - fears of escalation in the region

Israeli strike kills Hezbollah chief of staff Haytham Ali Tabatabai in Beirut as Israeli Prime Minister Benjamin Netanyahu calls him a "mass murderer" with $5 million bounty on his head.

The Israeli military has struck Lebanon’s capital Beirut for the first time in months, killing Hezbollah’s chief of staff among others. CNN’s Nic Robertson has more.

Smoke could be seen in the busy Haret Hreik neighborhood, with one video that circulated on social media showing dozens of people crowded around the area of the strike.

Escalating its attacks on the armed group in Lebanon, Israel said it killed Hezbollah’s chief of staff in an airstrike on an apartment building.

Israel has struck Lebanon’s capital for the first time since June, saying it killed Hezbollah’s chief of staff and warning the Iran-backed militant group not to rearm and rebuild.

The strike in Beirut’s southern suburbs killed five people and wounded 25 others, Lebanon’s Health Ministry said.