A rock festival in Nuremberg, Germany has been evacuated because of fears of a terror attack.

Music fans at Rock am Ring were last night told to leave the main festival arena 'in a controlled and orderly fashion'. "Due to a terror danger situation, we told the organiser to temporarily stop the concert as a precaution," local police said in a statement, according to Variety. They said they had "concrete leads" that suggested a terror attack could take place. “As safety is paramount, and it is necessary to exclude a threat to festival visitors in any case as far as possible, it was decided to suspend the festival for this day,” they said. The festival-goers reportedly sang You'll Never Walk Alone as they exited the premises. The evacuation came in the wake of the terror attack at a Manchester concert almost two weeks ago. A number of events and concerts around the world, including gigs at Dublin's 3 Arena and this weekend's Forbidden Fruit, have stepped up security measures recently. Up to 90,000 people had been expected to attend the Rock am Ring over the weekend. The festival organisers said they were hoping that the rest of the festival would go ahead as planned.