Greek authorities say floods caused by heavy overnight rain have left three people dead in southern parts of the country.

The fire brigade says two women, aged 80 and 63, were found dead in their flooded basement homes in the city of Kalamata and its outskirts. A 90-year-old man also died in the Kalamata area, which is in the southern Peloponnese region.

In northern Greece, authorities are seeking a woman in her sixties who has been missing since early Wednesday after phoning her husband to say she was abandoning her flooded car.

The rainfall flooded homes and businesses in other parts of the southern Peloponnese, and in the outskirts of the northern city of Thessaloniki.