Israel strikes south Beirut, prompting Lebanese appeal to ceasefire guarantors
But Israeli Prime Minister Benjamin Netanyahu's office said the strike targeted a building used by Hezbollah to store "precision-guided missiles" and vowed to stop the Iran-backed militant group using Beirut's southern suburbs as a "safe haven".
An AFP correspondent saw a plume of smoke rising over the building in the Hadath neighbourhood after the strike.
Lebanese television channels broadcast images of a fire around the hangar-like building.
The Israeli military had earlier issued a warning to civilians to evacuate the densely populated neighbourhood.
"An urgent warning for those in the southern suburbs of Beirut, especially in the Hadath neighbourhood: Anyone present in the building marked in red on the attached map as well as the surrounding buildings, is near Hezbollah facilities," said military spokesman Avichay Adraee on X, adding: "You must evacuate".
Netanyahu's office said Israel "will not allow Hezbollah to grow stronger and create any threat against it -- anywhere in Lebanon".
"The Dahiyeh neighbourhood in Beirut will not serve as a safe haven for the terrorist organisation Hezbollah," it vowed, using the Arabic name for the southern suburbs.
In a later statement, the military said that "the storage of missiles in this infrastructure site constitutes a blatant violation of the understandings between Israel and Lebanon."
But the Lebanese president condemned the strike as a new breach of the November 27 ceasefire and urged its guarantors to put a stop to Israel's continual attacks.
Aoun called on "the United States and France, as guarantors of the ceasefire agreement, to assume their responsibilities and compel Israel to halt its attacks immediately".
'Fear of renewed violence'
The United Nations special coordinator for Lebanon, Jeanine Hennis-Plasschaert, appealed to all sides to halt any actions that could further undermine the ceasefire.
"Today’s strike on the southern suburbs of Beirut generated panic and fear of renewed violence among those desperate for a return to normalcy," she said in a post.
"We urge all sides to halt any actions that could further undermine the cessation of hostilities understanding."
The UN peacekeeping force in Lebanon also has a seat on the ceasefire monitoring committee, alongside France and the United States and the Israeli and Lebanese governments.
The south Beirut strike was not Israel's only operation against targets inside Lebanon on Sunday.
The Lebanese health ministry said an Israeli drone strike on the border town of Halta killed one person.
Lebanese media reported that a man was killed while working on his chicken farm. The Israeli military said it killed a Hezbollah militant.
Israel has continued to carry out repeated strikes in Lebanon despite the November truce that sought to halt more than a year of hostilities with Hezbollah, including two months of full-blown war.
Under the November deal, Hezbollah was to pull its fighters north of Lebanon's Litani River, some 30 kilometres (20 miles) from the Israeli border, and dismantle any remaining military infrastructure to its south.
Israel was to withdraw all its forces from south Lebanon, but troops remain in five positions that it deems "strategic".