In the war-devastated southern Lebanese village of Aitaroun, residents marked the Muslim holiday of Eid al-Fitr among their dead.

Relatives crowded the village's cemeteries to pray for the more than 100 residents, including fighters from Hezbollah, killed during the war between the militant group and Israel that ended with a fragile ceasefire in November.

Prime Minister Nawaf Salam said an Israeli strike early Tuesday on Beirut's southern suburbs was a "clear breach" of a ceasefire that largely ended more than a year of hostilities between Israel and Hezbollah.

In a statement issued by his office, Salam condemned the strike as "a clear breach of the arrangements of the cessation of hostilities" and a "flagrant violation of United Nations Resolution 1701," a Security Council decision that ended a 2006 war between Israel and Hezbollah and served as the foundation of the November truce.

President Joseph Aoun condemned an Israeli strike early Tuesday on Beirut's southern suburbs, calling on international allies to support the country's right to full territorial sovereignty.

"Israel's persistence in its aggression requires more effort from us in addressing Lebanon's friends around the world and rallying them in support of our right to full sovereignty over our land," Aoun said in a statement released by the presidency.

A source close to Hezbollah said an Israeli strike overnight Tuesday on Beirut's southern suburbs targeted an official overseeing Palestinian affairs in the Iran-backed Lebanese group.

The strike "targeted Hassan Bdair, Hezbollah's deputy head for the Palestinian file" who was "at home with his family" at the time, the source told AFP, requesting anonymity as they were not authorized to brief the media.

Lebanese authorities said several suspects have been arrested after rockets were fired at Israel earlier this month, testing a fragile November ceasefire.

Lebanon's General Security agency said it had "arrested a number of suspects, and the relevant authorities have begun investigations with them to determine responsibility and take the appropriate legal measures."

French President Emmanuel Macron has called on Israeli Prime Minister Benjamin Netanyahu, in a phone call, to "strictly respect the ceasefire" in Lebanon, a former French protectorate where Israel on Friday bombed the southern Beirut stronghold of Hezbollah for the first time after four months of truce.

The Beirut strike came after rockets were fired from Lebanon towards Israel on Friday, testing the fragile truce.

Prime Minister Nawaf Salam met Sunday in Mecca with Saudi Crown Prince Mohammad bin Salman after performing the Eid al-Fitr prayer with him at Mecca’s Grand Mosque.

Israeli Prime Minister Benjamin Netanyahu said Sunday that Israel is enforcing a tough and uncompromising policy in Lebanon.

Hezbollah chief Sheikh Naim Qassem has said in a speech broadcast overnight that he could not accept continued Israeli attacks on Lebanon, a day after Israel’s first strike on Beirut since a November ceasefire.

"This aggression must end. Israel... bombed Beirut's southern suburbs for the first time since the truce... we cannot allow this to continue," Qassem said in a televised address.

The Israeli attack that targeted Beirut’s southern suburbs for the first time since the latest war will be discussed in meetings that President Joseph Aoun is expected to hold following his return from France on Friday evening, informed sources said.