German police have arrested a man on suspicion of planning to carry out an attack, a police spokesman said on Monday, adding that the authorities believe he could be linked to a suspect arrested in Austria two days ago over jihadi contacts.
Special police units arrested the man and a woman during a raid on an apartment in the western city of Neuss on Saturday, a spokesman for the Criminal Investigation Office (LKA) said. The woman has been released.
The man has been charged with planning to carry out a "serious act of violent subversion," said Frank Scheulen, spokesman for the LKA in the state of North Rhine-Westphalia.
A failed asylum seeker from Tunisia rammed a truck into a Christmas market last month in Berlin, killing 12 people.