Three inmates attempted to escape from Sion prison on Sunday morning. Their capture required a major police operation. In circumstances that have yet to be determined, the three inmates managed to climb onto the roof of the establishment at around 8.20am, with the aim of attempting to escape, the Valais cantonal police said on Sunday. +Get the most important news from Switzerland in your inbox The operation ended shortly before midday and required the deployment of 35 police officers and specialists from the negotiation group, the intervention group and the dog unit. The three detainees were arrested. Two of them were injured and taken to hospital by ambulance. According to the police, the detainees had been in custody for several months. At no time was there any danger to the public. The Public Prosecutor's Office has opened an investigation to clarify the circumstances of the escape attempt. Adapted from French by DeepL/ac How we work We select the most relevant news for an ...