>> Germany stepping up a war of words with Turkey over the detention of six human right's activists. Foreign Minister Sigmar Gabriel on Thursday warning Germans to take care when travelling to the country, and threatening to end corporate investment guarantees for Ankara. Gabriel cut short a holiday to deal with the escalating crisis.
> I therefore do not see how we, as the German government, can continue to guarantee German corporate investment in Turkey. If as shown, there are threats of haphazard decisions for political reasons.>> Gabriel said Germany would talk to EU partners about Turkey's aspirations to join the block.
And said he could not envisage talks on expanding the customs union to the country.>> Unfortunately I can't see any kind of readiness on the current Turkish government side to go on this path with us. Which is why we in Germany will be forced to take a new direction in our Turkish policy.
>> The travel warning could hit Turkey hard, bookings from Germany account for around 15% of its tourists. The measures also mark a significantly more confrontational stance towards the NATO ally. And they are supported by German chancellor Angela Merkel, who labeled them necessary and unavoidable in a tweet. She has already sharply criticized the detention of the activists.
The detained group, which includes a German national and Amnesty International's Turkish director, is accused of belonging to a terrorist organization. They are among 50,000 jailed pending trial in a crackdown that followed an attempted coup a year ago. Turkey has already lashed out at the measures. A spokesman for President Tayyip Erdogan says Ankara cannot accept such a stance.
But the unusually direct language from Germany is a sure sign of growing impatience.