An overnight flash flood caused by a downpour drowned five people including two children early on Sunday in the capital city of Georgia.

According to the emergency service and rescuers of the municipality, the flash flood occurred around the Ortechal district in the city and rescuers had to use boats to evacuate people.

Several others were sent to hospitals where they had been receiving treatment for injuries.

Rescuers also reported property damages to houses because of mudslides triggered by the flash flood.

Tbilisi Mayor Gigi Ugulava said, "The (Tbilisi) City Hall has created a special commission to check upon the flood damage while rescuers and municipal emergency service have been working overnight to clean the flooded district and to restore roads"

"By nine (o'clock) this morning (Sunday) the situation had been brought to normal," said Ugulava.

Temur Giorgadze, chief of the Tbilisi emergency service, described the Saturday night downpour as the heaviest in recent years.

Tbilisi weather forecasters warned local residents that more rains are expected in the next three days, including further downpours.