A number of people have been trapped under the wreckage after part of the roof of the FC Twente football stadium in the Netherlands collapsed, police said.
Part of the roof caved in around midday, police spokesman Jan Lamberts told The Associated Press.
He said “people are trapped, but we don’t know how many”.
He said emergency services were at the stadium in Enschede, which is undergoing renovations during the offseason.
The roof is reported to have collapsed after two support beams buckled, although the reason why this happened is not yet known.
Emergency services have arrived to deal with the casualties, with at least five people reportedly injured – and the stadium has been evacuated.
The work was being carried out as part of the club’s development of their stadium to a 32,000-seat arena. The capacity was just 13,500 when the Enschede side moved to the venue in 1998.