Kastamonu province is the worst-hit area. Apartment buildings in the town of Bozkurt were destroyed when the Ezine river burst its banks. This month Turkey has also had to battle huge wildfires in the south. Eight people died when a fire-fighting plane crashed in Adana on Saturday, just before it was due to land.
Five Russian servicemen and three Turkish citizens were on board the aircraft, Interfax agency reported. Those fires - which are now under control - forced thousands of locals and tourists to flee Marmaris and surrounding areas. Eight people died and more than 100,000 hectares (247,000 acres) of vegetation was devastated. The floods, triggered by torrential rain, caused some buildings to collapse, smashed bridges, clogged streets with wrecked cars and cut power supplies.
On Sunday Turkish authorities said 70 people had been killed in three provinces along the Black Sea, including 60 in Kastamonu. Dozens of people are still missing. President Recep Tayyip Erdogan visited Kastamonu on Friday and attended a funeral for some of the flooding victims. "We can't bring back the citizens we lost, but our state has the means and power to compensate those who lost loved ones," Mr Erdogan said after leading prayers.
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