Nationwide floods in Iran have displaced tens of thousands of people and left dozens dead in the past two weeks. More rain is forecast in the coming days.

Heavy rain began in mid-March in the northeastern province of Golestan, which received 70 percent of its average annual rainfall in one day. The flooding has steadily spread across the nation, inundating communities in at least 26 of Iran’s 31 provinces.

“Iran is under water,” said Sayed Hashem, regional director of the International Federation of the Red Cross and Red Crescent. “The scale of this crisis means that more help is needed.”