Islamic Republic of Iran: Humanitarian Update No. 02 | As of 3 April 2026

This Humanitarian Update is produced by UN OCHA Regional Office for the Middle East and North Africa (ROMENA) on behalf of and in collaboration with UN agencies and humanitarian organisations. It covers the period from 18 March to 3 April 2026.

Highlights

• Intense airstrikes in several provinces have caused high numbers of civilian casualties and extensive damage to civilian infrastructure including homes, schools and health facilities.
• Strikes on critical infrastructure and industrial sites have disrupted basic services including electricity, water and telecommunications, also leading to increasing immediate and longer term environmental and health risks.
• Seasonal flooding caused additional casualties and damage in several conflict-affected areas.
• Reports of population movements have increased as ongoing conflict‑related insecurity and flooding continue to trigger further relocations and evacuations across multiple provinces.
• Government entities continue to implement large scale emergency responses, with the support of the IRCS, to ensure continuity of services and provision of emergency assistance to affected people.
• UN agencies and international non-governmental organisations (INGOs) continue to provide critical services to refugees and to support Government-led efforts to provide humanitarian assistance for those affected by the hostilities.

Key Figures

2.1K+ Civilians killed (from 28 February and as of 30 March 2026)

27.9K+ Injured (from 28 February and as of 30 March 2026)

3.8M+ Impacted (from 28 February and as of 30 March 2026)

115K+ Civilian units damaged (from 28 February and as of 1 April 2026)

Situation Overview

Between 17 March and 3 April, the humanitarian situation in the Islamic Republic of Iran worsened as hostilities expanded across a broader geographic area, with airstrikes affecting Tehran, Isfahan, Khuzestan, Fars, Markazi, Yazd, Bushehr, East Azerbaijan, West Azerbaijan, Kurdistan, Lorestan, Ilam, and Kermanshah provinces. At the same time, heavy rainfall and flooding between 25 and 30 March impacted Lorestan, Hormozgan, Khuzestan, Mazandaran, Semnan, Fars, North Khorasan, Ilam, Bushehr, and Sistan and Baluchestan provinces, compounding the effects of ongoing hostilities and disrupting access and movement for already‑affected communities.

Civilian casualties continued to rise sharply as strikes were reported on airports, hospitals, residential areas, markets, schools, industrial sites, and cultural heritage locations across nearly all affected provinces. Since the start of the conflict and as of 3 April, Iran Ministry of Healthand Medical Education (MoHME) reported 216 children, 251 women and 24 health workers killed and 1,881 children, 4,610 women and 116 health workers injured.

As of 3 April, the Iranian Red Crescent Society (IRCS) reported three of its emergency personnel had been killed, and 15 injured, and over 334 health and emergency centres damaged (316 pharmaceutical, medical, health, and emergency centres and 18 IRCS centres). On 3 April, IRCS reported extensive damage to a relief warehouse in Choghadak city (Bushehr Province). Overall and as of 1 April, IRCS reported 18 IRCS bases and branches damaged by strikes. Between 1 March and 2 April, WHO surveillance system verified a total of 23 attacks on health care in Iran, resulting in 9 deaths.

As of 3 April, the IRCS reported 115,193 civilian units had been damaged, including 763 schools. Additional damage was reported in several locations to special care facilities for persons with disabilities, medical warehouses, psychiatric facilities, and airport infrastructure. This included the civilian international airport in Tehran, a power plant in Khorramshahr (Khuzestan), and water reservoirs in Fars and Khuzestan. The International Atomic Energy Agency (IAEA) confirmed strikes had affected nuclear facilities in Khondab (Markazi), Yazd and Bushehr, the latter now struck for the fourth time, with one physical protection staff member reportedly killed by a projectile fragment and a building on site affected by shockwaves and fragments. No increase in radiation levels was reported.

Basic service disruptions continued to be reported across multiple provinces due to ongoing hostilities, compounded by severe weather and flooding between 25 and 28 March, including repeated electricity and telecommunications outages. Flooding further damaged roads, agricultural land, and transport routes in Markazi, Mazandaran, Fars, and Semnan.

Reports point towards the continued displacement of hundreds of thousands of people. UNHCR reported that currently, there are no indications that Afghan refugees intend to return to Afghanistan in larger numbers. Flooding between 25 and 30 March compounded humanitarian needs across 24 provinces, notably leading to more people evacuated or temporarily relocated. Severe weather also stranded many people in North Khorasan, Ilam, and Bushehr.

Third country nationals continue to be reportedly stranded in the country due to the airspace closures.