The 37-year-old remains in custody
Police have arrested a 37-year-old man from St Helens on suspicion of attempted murder and possession of a firearm.
He remains in custody for questioning.
Officers are investigating following reports of a firearms discharge in Kirkby on Monday.
Officers were contacted just before 6.45pm to reports that a 31-year-old man and 35-year-old man had both received gunshot wounds in the Market Tavern, Newtown Gardens.
The men were treated at the scene and have both been taken to hospital for further treatment.
On Monday Police released this statement:
Chief Inspector Kevin Chatterton said: "The investigation is currently in its early stages and we are working to establish what has happened.
"I would appeal for anyone who was in the area around Newtown Gardens in Kirkby Town Centre, this evening who has seen anything to contact us a matter of urgency as they may have information which is vital to this investigation.
"I want to reassure the public that we are committed to tackling gun crime and we will continue to take action to protect our communities from individuals who use firearms with no thought for members of the public."
Information from the public is vital, anyone with information is asked to contact us by calling 101 or DM us @MerPolCC quoting ref 0803 of 25 November, or Crimestoppers anonymously on 0800 555 111.