Thieves used explosives to steal “archaeological masterpieces” from a Dutch museum, police say.

In the early hours of Saturday morning, around 3:45 a.m., Dutch police, known as the Politie, said in a statement online that they received a report of an explosion at the Drents Museum, located in the northern part of The Netherlands, in the city of Assen.

Surveillance footage released by police shows multiple suspects working together at the museum’s door when a flash goes off and sparks fly into the air. Smoke can be seen billowing out as what appears to be a door and a security barrier are unhinged.