More than a dozen people died in Greece, Turkey and Bulgaria as heavy rains hit parts of those countries. Record rainfall hit the central region of Magnesia in Greece.
Storms have killed more than a dozen people in Greece, Turkey and Bulgaria, as a period of extreme heat has given way to heavy rainstorms in the region.
At least seven people were killed as heavy rains triggered flash floods in northwest Turkey, state news agency Anadolu said on Wednesday.
Five people died and one person was missing in Kirklareli province near the border with Bulgaria and Greece, after houses were flooded late on Tuesday, local media reported.
Authorities said a further two people were killed and 31 injured in Istanbul's northern Basaksehir and Kucukcekmece districts, where images showed cars floating in floodwaters.
Turkey's largest city received rainfall roughly equivalent to what it would expect in the entirety of September in the space of six hours, the governor's office said in a statement.
Interior Minister Ali Yerlikaya said search and rescue operations were continuing and pledged financial support to families in flood-affected areas.
