Britons travelling to Turkey have been warned of possible demonstrations in number of cities – including the costal resort of Kusadasi – following the country’s worst ever mining disaster.

Three days of national mourning started yesterday in the wake of Tuesday’s incident which is reported to have killed at least 274 workers in Manisa province in western Turkey.

Police in the capital of Ankara fired tear gas and water cannon at about 800 protesters who tried to march from a university to the energy ministry, according to BBC reports.

The Foreign and Commonwealth Office said: “In response to the tragedy, there are calls for strike action and for protests to take place in the Guven Park area of Ankara, the Istiklal-Galatasaray area of Istanbul and in the cities of Izmir, Antakya, Antalya, Samsun and Kusadasi.

“You should remain vigilant and avoid areas where demonstrations are taking place.”