[REVISION HISTORY]

Flooding and disaster relief in Istanbul

Updated 15 times since CLSTR started tracking revisions of this situation.

What changed

2026-10-20 18:55 UTC → 2026-10-21 12:43 UTC · added ~~removed~~

Severe flooding and the most intense rainfall recorded in Istanbul in 84 years have resulted in at least 10 fatalities. The Istanbul Governor's Office confirmed that search operations concluded following the recovery of the final missing person, Ahmet Derin. The extreme weather caused widespread destruction to homes, businesses, and vehicles across Istanbul and the neighboring Kocaeli province, with some areas receiving up to 273 liters of rain per square meter. In response, authorities have begun repairing material damages and processing initial compensation. Financial impacts are ~~escalating, with~~ escalating. While the Türkiye Insurance Association ~~reporting that insurance companies have set aside~~ previously reported reserves of nearly 2 billion ~~lira in reserves for potential compensation across several provinces, including Istanbul, Kocaeli, Antalya, Yalova, Bursa, and Sakarya. This includes~~ lira, total payouts are now expected to approach 4.5 billion TL. Insurance companies have received over 3,000 damage claims, with approximately ~~1.56~~ 4 billion ~~lira for 1,638~~ TL falling under fire insurance policies covering homes and businesses, and nearly 1,000 claims involving vehicle casco insurance. In the Ayazağa district, business owners reported heavy damage to machinery, vehicles, and ~~345 million lira for 741 motor insurance claims,~~ inventory due to the Cendere Stream overflowing, with ~~Istanbul recording~~ some entrepreneurs estimating individual losses as high as 15 million TL. Local merchants attributed the ~~highest number~~ severity of ~~reports~~ the flooding to urban development and construction that has narrowed natural stream beds. In response to the disaster, Commerce Minister Ömer Bolat announced 80 million TL in ~~both categories.~~ cash support for affected tradespeople. Beyond direct physical damage, consumers ~~have reported~~ continue to report secondary hardships on the Şikayetvar platform, including difficulties with service repairs, e-commerce transactions, and prolonged electricity outages. ~~Residents also noted significant property damage caused by water backing up through drains, affecting appliances and flooring.~~

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