Turkish hackers have again attacked the Austrian foreign ministry's internet pages amid simmering tensions between the two countries, authorities said.
Spokesman Thomas Schnoell said the ministry's home page was offline for several minutes.
The latest blow to already strained ties follows moves by chancellor Christian Kern and foreign minister Sebastian Kurz to ban Turkish officials from campaigning in Austria on behalf of Turkey's president Recep Tayyip Erdogan and a proposed new constitution.
Austria is home to hundreds of thousands of Turks, many with dual citizenship.
Mr Schnoell identified the perpetrators as Aslan Neferler Tim, a group which has claimed previous cyberattacks on his ministry, parliament and the defence ministry.
He said Mr Kurz will "not be deterred from his Turkey policies" as a result of Monday's attacks.