Pakistan, Dec. 16 -- Authorities in Gaza warned on Monday that more war-damaged buildings could collapse due to heavy rain, worsening conditions in the already devastated enclave. The weather has also hampered efforts to recover bodies still trapped beneath rubble.

At least 12 people were killed on Friday when two damaged buildings collapsed during a storm, according to local health officials. The severe weather also flooded tents, washed away shelters, and caused deaths from exposure among displaced families.

Although Israel and Hamas agreed to a ceasefire in October after two years of intense fighting, humanitarian agencies say aid entering Gaza remains far below what is needed. Nearly the entire population has been left homeless, rel...