European Parliament president Martin Schulz, who has expressed himself in favour of Greece's stay in the eurozone, is visiting the nation's capital on 18 May.
From Athens, via his iPhone, Schulz tweeted: "In Europe we talk a lot about Greece, but not enough with the Greeks. This is why I'm in Athens today-to talk with and listen to the Greeks."
Schulz also has warned against any Greek exit from the eurozone, saying the country's economy could collapse within days if it abandoned the single currency.