A large group of anarchists occupied and vandalized part of the Thessaloniki University campus over the weekend, calling for the release of a detained November 17 terrorism suspect. Some 200 youths broke into the Physics and Mathematics Department building late on Friday, according to Thessaloniki University’s deputy dean, Anestis Philippidis, and stayed there until yesterday morning demanding the release of Yiannis Serifis, a 64-year-old trade unionist arrested last Sunday. He was the latest in a string of 18 N17 suspects to be charged since the group began to unravel at the end of June. The anarchists caused some 30,000 euros’ worth of damage, Philippidis said. Greece’s asylum laws ban police from entering any campus unless expressly invited to do so by the university authorities.