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What happened, where and when?
Since 15 December 2025, a series of intense and unstable weather systems has caused heavy rainfall, flash floods, river overflows, and widespread waterlogging across large parts of Iran, resulting in significant humanitarian impacts in both urban and rural areas. The event has affected 25 provinces nationwide, including East Azerbaijan, Ardabil, Isfahan, Bushehr, Chaharmahal and Bakhtiari, South Khorasan, Razavi Khorasan, North Khorasan, Khuzestan, Zanjan, Semnan, Sistan and Baluchestan, Fars, Qom, Kurdistan, Kerman, Kohgiluyeh and Boyer-Ahmad, Golestan, Lorestan, Mazandaran, Kish Free Zone, Markazi, Hormozgan, Hamedan, and Yazd. Flooding of residential areas, disruption of transport routes, trapping of vehicles, and localized infrastructure damage have been reported. Tragically, 7 fatalities have been confirmed in the provinces of Fars, Khuzestan, and Hormozgan. To date, the floods have affected 335 operational locations, with 193 branches of the Iranian Red Crescent Society actively involved in the response. In total, 42,112 people have benefited from emergency and humanitarian services provided during the ongoing operation. The event has resulted in 16 injured people transferred to medical facilities and 3 individuals treated on an outpatient basis. Additionally, four technical rescue cases have been recorded in the provinces of Fars and Hormozgan. The widespread geographical coverage and continued impact of the floods have generated extensive humanitarian needs, particularly related to shelter, evacuation, basic relief assistance, and safety of affected populations.