A roof has collapsed as building work takes place at FC Twente's ground, with several people reportedly trapped.
Pictures appear to show part of the roof at one end of the Grolsch Veste has come down and initial reports suggest there may be casualties.
The work was being carried out as part of development work of the Eredivisie club's stadium.
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.