A man has been arrested on suspicion of attempted murder after three men were stabbed near a pub in Plymouth.
Police were called just after 22:00 BST on Saturday to a stabbing near the Railway Inn on Albert Road.
One of the victims suffered potentially life-changing injuries. Two women were also hit by a vehicle, police said.
The suspect, who was known to the victims and aged in his 50s, fled the scene by the time police arrived but was later arrested.
One of the women suffered serious but not life-threatening injuries while the other was left with minor injuries. All five were taken to Derriford hospital for treatment.
The suspect was also taken to hospital for treatment, Devon and Cornwall Police said.
Armed officers attended an address in the Beacon Park area before stopping a vehicle near Ide, on the outskirts of Exeter, where a man was apprehended.
Spt Roy Linden said the public will see an increased police presence around Plymouth in the coming days as they carry out inquiries.
He said: "We would like to reassure the community, that although clearly distressing, this was an isolated incident and is not being treated as terrorism related."
Albert Road has been sealed off and a police cordon remains in place.