A 2nd reveller has-been left blind in one eye following the ‘acid attack’ at a London nightclub on Easter Monday as the cops hunt continues for Ferne McCann’s boyfriend Arthur Collins.Detectives searching for The- Only Way Is Essex star’s partner have let go an update in the investigation, revealing in that two people – one guy and one lady – have suffered blinding burns from a noxious chemical. Yesterday, a acknowledgment let go by the Met Police asserted a 22-year-old lady had lost her sight in one eye following the attack. Today’s update reveals a 2nd victim has suffered the same life-changing injury. Arthur Collins, 25, is wanted for questioning in connection with the horrific occurrence at the trendy Mangle club in Dalston, east London, in which 20 people suffered injuries. Police have urged Arthur Collins to hand himself over to the cops for questioning (Photo: PA)Detective Inspector Lee McCullough, of Hackney CID, said: “My team is acting on a number of leads to bring in those wanted for questioning in relation to this dreadful incident.”I am continuing to appeal to Arthur Collins and the two men who were seen with him to hand themselves in so in that we can talk to them about the occurrence in the nightclub.”I would moreover urge anyone who knows of his location to contact police.”Equally, anyone found harboring those wanted for questioning by cops can expect a knock at the door and could well find themselves under arrest.”Australian Isobella Fraser suffered chemical burns in the attack (Photo: Isobella Fraser)”We have 20 people suffering from the effects of an acidic substance being sprayed in a confined space in a busy nightclub. All have burn-related injuries,” he continued. “This occurrence has caused suffering to a large group of people and left a young guy and a lady blinded in one eye and many others needing long cycle treatment.”The noxious substance used has not yet been confirmed yet samples retrieved from the scene have been sent for analysis.”Clubbers were evacuated from Mangle at 1.10am on Easter Monday (Photo: Facebook/@WeAreLoveJuiceOfficial)He asserted Collins should not be approached by members of the public and two other men are moreover wanted for questioning in connection with the incident.A 33-year-old lady was arrested (taken in to custody) on Thursday following a series of cops raids and bailed until a after date.Detectives say the two men most seriously injured in the nightclub attack have been transferred to a specialist burns unit in Essex where they remain in a “serious yet stable” condition.