The police watchdog has opened an investigation into the death of a 57-year-old man who was shot after Wiltshire police were called to an incident in Swindon. On Sunday, the Independent Office for Police Conduct (IOPC) announced it had opened an investigation into the incident. The watchdog said Wiltshire police officers were at the scene shortly after 2am on Sunday. They added that the IOPC believed the man was fatally shot while police responded to reports of two men arguing in the street. The 57-year-old was declared dead in an ambulance at 2.56am. The IOPC said: “Our thoughts and sympathies are with all of those affected by this terrible incident. IOPC investigators are at the scene and the post-incident procedures where the key police witnesses will provide their initial accounts. “It is mandatory for us to conduct an independent investigation when the police fatally shoot a member of the public. We have established protocols with the police to ensure our investigations do not hinder their ability to conduct inquiries as part of their related investigations.” No arrests have been made. Wiltshire police confirmed a referral had been made to the IOPC regarding the death of a member of the public. The force’s statement said: “The IOPC are independently investigating this incident, so it would be inappropriate for us to comment any further on it. “We would, however, like to reassure the public there is no risk to the wider community and that there is likely to be an increased police presence in the area for a considerable time.”