GENEVA — Some hospitals in Lebanon could run out of life-saving trauma medical kits within days due to rapidly depleting supplies following mass casualties from large-scale Israeli strikes over the past day, the World Health Organization (WHO) said.

The life-saving trauma kits contain bandages, antibiotics, and anesthetics used to treat patients with war-related injuries, the WHO said.

“Some of the trauma management supplies were in short [supply] and we may run out in a few days,” Dr. Abdinasir Abubakar, the WHO’s representative in Lebanon, told Reuters.

Israel carried out further strikes in Lebanon on Thursday after what was described as its largest attacks of the war on Wednesday, which reportedly killed more than 250 people and injured over 1,000.

“If we have another mass casualty, like what happened yesterday, it will be a disaster,” Abubakar said.

“Probably we will lose more lives just because we don’t have enough supplies,” he added.

He said shortages of trauma kits were driven by a sudden spike in casualties, mostly civilians, with about three weeks’ worth of supplies reportedly exhausted in just one day.

Abubakar also warned that medicines for chronic illnesses, including insulin for diabetes patients, could run out within weeks as supply chains are disrupted by the war in the Gulf and the closure of the Strait of Hormuz.

He said delivery costs for medical supplies into Lebanon have tripled, while the WHO is also facing funding constraints.

The WHO said it is coordinating with the Lebanese Ministry of Health to move supplies between hospitals to prevent total depletion, but warned that the health system is nearing its limits.

More than one million people have been displaced in Lebanon since the conflict began on March 2, following joint US-Israeli strikes on Iran in late February, according to the United Nations.