Emergenc yin several suburbs of North Athens. Local authorities urge citizens in Marousi, Vrilissia and Chalandri to stay in their homes.
According to the fire brigade, they have received 140 calls for help and to pump out flood water from the two areas and in the suburbs of Vrilissia, Melissia and Penteli.
On Wednesday the meteorological service issued an emergency warning, forecasting heavy rains and storms affecting parts of Greece, including the greater Athens area.