Several people have died following a shooting in the Swiss state of Aargau, Sky News quoted local police as saying.

Officers were called to the northern town of Würenlingen after gunshots were heard shortly after 11pm on Saturday night.

Upon arrival, "several" bodies were found lying outside and in a house. Ambulance workers have been unable to give a cause of death.

All of those killed were adults, and investigators are working to identify the victims - as well as a possible motive.