Updated: 10.20am
Several people have been taken hostage in the eastern Dutch town of Ede early on Saturday morning, and homes in the area have been evacuated, police said.
There was no indication of a terrorist motive, police added.
Several special police units had been deployed to the scene, a building in the centre of town, a police statement posted on social media confirmed.
The force added that 150 homes had been evacuated and the public was asked to stay away from the area.
People were being held at the local Petticoat nightclub by a man with weapons and explosives, national newspaper de Telegraaf reported, citing several anonymous sources.
A reporter for broadcaster NOS said a remote-controlled robot was at the scene, as well as anti-explosives units and police in protective gear.
Trains to and from Ede were cancelled, railway operator NS said on its website.
-Reuters