George Thorpe,BBC News, South West
A woman in her 90s is in a “potentially life-threatening” condition after being bitten by a dog, police have said.
Devon and Cornwall Police said officers were called to a property in Cannis Road, St Austell, Cornwall, at 00:45 BST on Thursday, following the attack.
Police said a woman was taken to Derriford Hospital, in Plymouth, with a “serious dog bite to her arm”.
The dog – which was not a banned breed – has been put to sleep.
A man in his 60s from St Austell, who was arrested on suspicion of causing or allowing a vulnerable adult to suffer serious harm, has been released on police bail until 29 August, the force added.
Police said the woman’s next of kin had been informed.
Officers said: “This is believed to have been an isolated incident with no wider risk to the community.
“A police cordon remains in place while inquiries are continuing.”