A pub landlord was hospitalised with a suspected punctured lung after being stabbed in the back.
Police and emergency services were called to the Junction Inn pub in Sutton, shortly before 11pm on Tuesday (December 10) after receiving reports that a man in his 40s had been assaulted.
The man, believed to be the pub landlord, suffered puncture wounds to his back and was taken, by ambulance, to Fazakerley Hospital - where his condition was described as serious but stable.
A short time after the incident a 35-year-old St Helens man was arrested on suspicion of assault and public order offences and a 40-year-old St Helens woman on suspicion of public order offences.
They were both questioned by police before being released on bail pending further inquiries.
A police spokesman confirmed that the attack had begun inside the Junction Lane pub before spilling outside.
Crime scene investigators have since examined the scene and CCTV from the area is being sought to provide further clues.
One neighbour said he believed the victim had been stabbed just outside the pub after going outside to speak to a group of people.
Det Insp Simon Draco, of St Helens CID, said: “I understand people living in the Sutton area will be concerned but I want to reassure them that a number of lines of inquiry are currently being pursued in respect of this incident, which I believe to be isolated.
“I know it’s a very close-knit community and I would appeal to people who may have any information about this incident to get in touch.”
g Anyone with information about the incident can call St Helens CID on 0151 777 6803 or Crimestoppers, in confidence, on 0800 555 111.