A Dutch prosecutor says police actions most likely caused the oxygen deprivation that led to the death of a man in custody following his arrest at a weekend music festival.

The Hague's chief prosecutor, Kitty Nooy, said Wednesday a preliminary autopsy report says Mitch Henriquez's death on Sunday "was extremely likely caused by a deprivation of oxygen he suffered."

Nooy added "it can be assumed that the lack of oxygen was a consequence of actions by the police."

The 42-year-old Aruban man's death has sparked claims of police brutality and two nights of rioting in The Hague that have led to 27 arrests.

Prosecutors are treating the five police officers who arrested Henriquez as suspects in his death.