A rock music festival in western Germany, Rock am Ring, is being evacuated over a "terrorist threat", the organisers have announced.
Fans began streaming out of the venue in Nuerburg after the organisers asked them to leave "in a calm and controlled manner".
"Due to a terrorist threat the police have advised us to interrupt the festival," they said.
A bomb at a concert in Manchester claimed 22 lives last month.
Some 85,000 people were expected to visit the three-day festival, Efe news agency reports. It falls on the Pentecost holiday weekend.
The organisers said in athey hoped the festival would resume on Saturday.
Rock am Ring celebrates its 30th anniversary this year. Friday's bands included Welshly Arms, In Flames and 2Cellos.
In August of last year, a failed asylum seeker from Syria blew himself outside an open-air concert.
He had been prevented by a security guard from getting into the concert area and detonated a rucksack filled with explosives in a local beer garden, killing himself and wounding 15 others.