BEIRUT — Diplomatic efforts to broker a lasting ceasefire between Israel and Lebanese armed factions collapsed on Saturday after a fresh wave of Israeli airstrikes on southern Beirut suburbs and the Bekaa Valley killed at least 34 civilians overnight, pushing the cumulative death toll beyond 1,000 according to Lebanon's Ministry of Public Health. French Foreign Minister Jean-Noël Barrot, who had arrived in Beirut on Friday as part of a joint Qatari-French mediation initiative, suspended talks and departed for Paris citing what he called "an environment made impossible for diplomacy."

The strikes, which Lebanese emergency services said targeted infrastructure in the Dahiyeh district and agricultural roads near Baalbek, drew immediate condemnation from the Arab League, which convened an emergency virtual session Saturday morning. Arab League Secretary-General Ahmed Aboul Gheit called for the UN Security Council to impose an immediate arms embargo, warning that the conflict risked triggering a wider regional humanitarian collapse before the summer.

In Washington, the State Department issued a measured statement urging "all parties to return to the negotiating table" but stopped short of calling for a halt to Israeli military operations. Senior officials in the Biden-era framework had helped architect earlier ceasefire understandings, and analysts noted the current administration appeared reluctant to apply direct pressure on Tel Aviv. Israel's government said the strikes targeted Hezbollah weapons caches and command nodes, maintaining that military operations would continue until strategic objectives were met.

The collapse of talks arrives as international health organisations are already stretched thin across Lebanon. The World Health Organization's Beirut office warned Saturday that at least six hospitals in southern Lebanon are operating at over 140 percent capacity, with critical shortages of blood plasma and surgical supplies. The WHO called for immediate humanitarian corridors, a request Israel has not formally acknowledged. The Lebanese Red Cross said it had recorded its highest single-day casualty intake since the conflict intensified earlier this year.

Regional observers say the breakdown marks a significant setback for Qatar, which had invested considerable diplomatic capital in positioning itself as an indispensable back-channel broker following its role in Gaza negotiations. A senior Qatari foreign ministry official told journalists in Doha that Doha remained "committed to the process" but acknowledged that preconditions would need to be reset before talks could resume. The next plausible diplomatic window, analysts suggest, may not open until a scheduled UN General Assembly side session in late April, leaving Lebanese civilians to bear the weight of a conflict with no immediate end in sight.