One person died and three others went missing after the floodwater swept away a container set up in a garden in the Tut district of Adıyaman, officials said.
In Şanlıurfa, at least 4 people have died in flash floods, and 6 others went missing, including 2 firefighters, Governor Salih Ayhan said.
Later, search and rescue teams found the bodies of five Syrian nationals inside a flooded basement apartment in the city.
At least five other people were reported missing, according to local reports.
The flood waters overwhelmed streets, shops, and subways, and stranded people in homes and cars, prompting dozens of evacuations and rescues.
Videos shared on social media platforms showed flood water dragging vehicles through city streets.
On February 6, a 7.8-magnitude earthquake struck southern Turkey and northern Syria.
There were more than 49,000 deaths and over 108, 000 people were injured across the ten most affected provinces in Turkey, including some casualties also in adjacent Elazığ and Batman provinces.
At least 13.5 million people and 4 million buildings have been affected. Thousands were trapped under rubble when buildings collapsed.
The Ministry of Environment, Urbanization, and Climate Change conducted damage inspections for 763,000 buildings; at least 41,791 buildings in 10 Turkish provinces were heavily damaged or destroyed, leaving about 150,000 people homeless. (ILKHA)