Two people are in hospital after a serious assault in Cornwall.
Police and paramedics were called to a house in Robartes Road in St Dennis, near St Austell on Saturday 6 April.
When officers arrived they found a man with a knife and used a taser to disarm him.
A man in his 60s, was taken to Derriford Hospital with serious injuries, where he remains under police guard.
Meanwhile, a woman in her 80s who also has serious injuries, was taken to Derriford Hospital by air ambulance.
Officers are not looking for anyone else in connection with their investigation, but are appealing for witnesses.
The incident has been referred to the Independent Office of Police Conduct (IOPC) for their consideration.