UNIFIL spokesperson Andrea Tenenti said on Thursday that peacekeepers "discovered a vast network of fortified tunnels in the vicinity of Tayr Harfa, Zibqin, and Naqura" in south Lebanon, including "several bunkers, artillery pieces, multiple rocket launchers, hundreds of shells and rockets, anti-tank mines, and other explosive devices."

Prime Minister Salam said in June that the Lebanese Army had dismantled more than 500 Hezbollah military positions and weapons depots in the south.

As Thursday's key cabinet meeting on the U.S. paper for Hezbollah's disarmament got underway, Hezbollah's parliamentary bloc called on the government to "correct the situation it has put itself and Lebanon in by slipping into accepting American demands that inevitably serve the interests of the Zionist enemy."

Lebanon's cabinet convened again on Thursday to discuss the thorny task of disarming Hezbollah, a day after the Iran-backed group rejected the government's decision to take away its weapons.

Relatives of Israeli hostages set sail on Thursday in a flotilla to approach the besieged Gaza Strip, according to an AFP journalist aboard one vessel, with organizers saying they hoped to "get as close as possible to their loved ones".

More than 20 people boarded several boats that departed from the coastal city of Ashkelon carrying yellow flags and posters bearing the images of the hostages, as they shouted their names.

The government has decided to task the army with setting a plan to disarm Hezbollah.

AFP looks at how the government's decision may be implemented, and whether the Iran-backed militant group can still block it.

Hezbollah, which Lebanon plans to disarm by year end, had a formidable arsenal before war with Israel severely weakened the group last year.

Prime Minister Nawaf Salam said in June that the Lebanese army had dismantled more than 500 Hezbollah military positions and weapons depots in the south, after a November ceasefire that sought to end more than a year of hostilities between the foes.

Israel launched a series of air strikes on southern Lebanon on Wednesday night, killing two people including a child.

The strikes wounded at least three people according to the health ministry.

Foreign Minister Abbas Araghchi said Wednesday that Iran supports its ally Hezbollah in its decisions, after the group rejected a Lebanese government plan to disarm it.

"Any decision on this matter will ultimately rest with Hezbollah itself. We support it from afar, but we do not intervene in its decisions," Araghchi said in a television interview, adding that the group has "rebuilt itself" following setbacks during its war with Israel last year.

Troops killed on Wednesday three "prominent" drug traffickers in a car chase in the country's northeast, the army said.

A military statement said that troops were "pursuing a car carrying the wanted individuals" in Al-Sharawneh, in Baalbek district, describing the three suspects as "among the most prominent and dangerous drug dealers".

Hezbollah announced Wednesday that it will deal with the cabinet’s decision on disarming it by the year’s end “as if it does not exist,” adding that it is “open to dialogue” and to “discussing a national security strategy.”

Cabinet has decided to rebaptize a thoroughfare named after former Syrian president Hafez al-Assad in favor of late Lebanese musician and playwright Ziad Rahbani, a move many welcomed on Wednesday.

The decision marks the end of an era and a rupture with the authoritarian rule of former Syrian leaders Hafez al-Assad and his son Bashar -- close allies of Lebanon's Hezbollah -- who from Damascus held Lebanon in a stranglehold for almost three decades.