Erdogan warns Greece as France vows to increase military presence

President Tayyip Erdogan said on Thursday that any attack on a Turkish ship exploring for oil and gas in disputed Mediterranean waters would incur a "high price" and suggested Turkey had already acted on that warning.

Tensions in the eastern Mediterranean have risen sharply this week after Turkey sent a survey vessel to the region, escorted by warships, in a move Greece decried as illegal.

"We said that if you attack our Oruc Reis you will pay a high price, and they got their first answer today," Erdogan said in a speech in Ankara without giving details.

The Oruc Reis set out on Monday with its military escort to survey waters between Crete and Cyprus.

In response, President Emmanuel Macron said France would increase its military presence in the region and called on Ankara to stop its exploration work. French and Greek forces held military training...