The injured personnel were part of the United Nations Interim Force in Lebanon (UNIFIL), which said the blast occurred near El Adeisse and that the injured were taken to hospital, with two reported in serious condition.

The United Nations Information Centre confirmed the nationalities of the wounded, adding that the cause of the explosion remained unknown.The incident follows a series of deadly events involving Indonesian peacekeepers in recent days.

One was killed on March 29 when a projectile exploded in southern Lebanon, with a UN security source attributing the blast to Israeli tank fire. Two others died a day later after an explosion struck a UNIFIL logistics convoy in the same region.

The bodies of the three killed peacekeepers are expected to arrive in Jakarta on Saturday, according to Indonesian military officials.

UNIFIL said the recent underscore the dangers faced by peacekeepers operating in areas affected by hostilities between Hezbollah and Israel, which have intensified since Lebanon became involved in the wider regional conflict in early March.

The mission reiterated calls for all parties to respect their obligations under international law to ensure the safety and security of UN personnel, including by avoiding military activity near peacekeeping positions.

“This has been a difficult week for peacekeepers working near the central part of UNIFIL’s area of operations,” the mission said in a statement.

The ministry said in a post on X that the strike targeted infrastructure linked to electricity generation and water desalination, without providing further details on the timing or scale of the attack.

Authorities said the assault caused damage to a service building within the plant complex, though the extent of disruption to power and water output was not immediately clear.

No additional casualties were reported in the initial statement.

The incident comes amid escalating hostilities involving Iran and its regional adversaries, with attacks increasingly affecting critical infrastructure across the Gulf.

Kuwait, a key energy producer, has not been a primary battlefield but remains vulnerable due to its strategic facilities.

Officials did not provide further operational details or attribute responsibility beyond identifying the attack as Iranian.

UNIFIL said the blast occurred on Sunday and that it had launched an investigation to determine the origin of the projectile. “We do not know the origin of the projectile,” the mission said, adding that emergency response teams were deployed.

Indonesia’s foreign ministry confirmed the fatality involved one of its nationals and said three other Indonesian peacekeepers were injured by indirect artillery fire near their position.

Jakarta condemned the incident, calling any harm to peacekeepers unacceptable, and reiterated its criticism of Israeli military actions in southern Lebanon.

Rising risks for UN forcesUNIFIL operates in southern Lebanon to monitor hostilities along the demarcation line with Israel, where clashes between Israeli forces and Iran-backed Hezbollah fighters have intensified in recent weeks.

The mission has increasingly been caught in crossfire. Earlier this month, Ghana said two of its peacekeepers were critically injured after a UN position was struck. Israel later acknowledged its tank fire had hit the site while responding to anti-tank missiles from Hezbollah.

The escalation follows Hezbollah rocket fire into Israel on March 2, which triggered a new Israeli offensive in southern Lebanon amid a wider regional conflict involving Iran.

UNIFIL urged all parties to adhere to international law and avoid actions that endanger UN personnel and facilities.