Police are appealing for information following a street disturbance in Morecambe in which four men were stabbed.
Officers were called to Queen Street at around 3:20am on Thursday 30 January.
Three of the men are in hospital with serious injuries, with one in a critical condition.
A 36-year-old man from Morecambe has been arrested on suspicion of section 18 assault and is currently in custody.
Two of the men being treated at hospital have also been arrested on suspicion of the same offence. They are aged 32 and 21.
Police have issued an appeal for CCTV or dash cam footage.
Detective Chief Inspector Alisa Wilson said: