An Israeli air strike targeted a senior Hezbollah commander in Beirut's southern suburbs late on Tuesday.
The Israeli military said it was in retaliation for a cross-border rocket attack three days before that killed 12 children and teenagers.
A loud blast was heard and a plume of smoke could be seen rising above the southern suburbs - a stronghold of the armed group Hezbollah - at around 7:40 pm (1640 GMT), a Reuters witness said.
A senior Lebanese security source said a senior Hezbollah commander had been the target of the air strike and his fate remained unclear.
Lebanon's state-run national news agency said an Israeli air strike had targeted the area around Hezbollah's Shura Council in the Haret Hreik neighbourhood of the capital.
Beirut has been on edge for days ahead of an anticipated Israeli attack in reprisal for the rocket strike on the Israeli-occupied Golan Heights on Saturday that killed the 12 youngsters in a football field in a Druze village.
Hezbollah has denied involvement in that attack.
As diplomats sought to contain the fallout, US Defence Secretary Lloyd Austin said he did not believe a fight was inevitable between Hezbollah and Israel, though he remained concerned about the potential for escalation.
Israel's political-security cabinet approved a plan to take control of Gaza early on Friday, hours after Prime Minister Benjamin Netanyahu said Israel intended to take military control of the entire strip.
The US has presented Lebanon with a proposal for disarming Hezbollah by the end of the year, along with ending Israel's military operations in the country and the withdrawal of its troops from five positions in south Lebanon, according to a copy of a Lebanese cabinet agenda reviewed by Reuters.
Israeli Prime Minister Benjamin Netanyahu said on Thursday that Israel intends to take military control of all of Gaza and will eventually hand it over to Arab forces that will govern it properly.
Gaza has seen its highest monthly figure of acute malnutrition in children, with hunger-related deaths rising in the enclave, the Director General of the World Health Organization said on Thursday.
Turkey's foreign minister will hold talks with Syria's president in Damascus on Thursday to assess bilateral ties, tensions between Syria and Israel, and recent clashes between a Kurdish-led group and the Syrian government, a Turkish Foreign Ministry source said.
Israeli Prime Minister Benjamin Netanyahu was due to meet with a small group of senior ministers on Thursday to discuss plans for the military to take control of more territory in Gaza, despite mounting criticism at home and abroad over the nearly two-year-old war there.
Presidents of Russia and the US will meet in the coming days, Kremlin aide Yuri Ushakov said on Thursday, in what would be the first summit between leaders of the two countries since 2021.
Five people were killed after a cable on a suspension bridge snapped in northwestern China's Xinjiang region, causing them to fall off the bridge, state-run news agency Xinhua reported on Thursday.
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Welcome to Pinoy Bulletin, your go-to source for staying informed about important announcements, exciting group activities, community events, and job opportunities!
Make sure to tune in every weekdays to Tag Gising Na from 5AM - 10 AM for a comprehensive roundup of important updates.