Metropolitan PoliceAn Algerian sex offender who was mistakenly released from prison has been arrested by police.Brahim Kaddour-Cherif, 24, was arrested after being spotted by a member of the public in Islington, London just before 11:30 GMT on Friday. He had been let out of HMP Wandsworth in south London on 29 October. Police said they were not told about the mistake until Tuesday 4 November.He was convicted of indecent exposure in November 2024, relating to an incident in March of that year.He was given an 18-month community order and placed on the sex offenders' register for five years.Live updates on this storyWandsworth prison manhunt: What we know about mistakenly released inmatesPM 'angry and frustrated' at mistaken prisoner releasesThe Metropolitan Police said he was spotted by a member of the public near Capital City College on Blackstock Road at 11:23. Officers responded "immediately" and he was arrested at 11:30, the force added.He was arrested for being unlawfully at large and on suspicion of assaulting an emergency worker in relation to a previous incident.He is understood to have entered the UK legally on a visitor's visa in 2019, but overstayed that and was in the initial stages of the deportation process.He was released the day after being found not guilty of breaching the sex offenders' register's requirements - but he was still facing other charges and should have remained in custody.The prison officers' representatives said a clerical error meant there was no warrant from the court to hold him, and he was let go.It followed a series of prosecutions and court appearances dating back two years.Kaddour-Cherif was one of two men separately released by mistake from Wandsworth Prison in the past week. William Smith handed himself back in on Thursday - after being let go on Monday, the same day he had been sentenced to prison.Their releases came just weeks after migrant sex offender Hadush Kebatu, who arrived in the UK on a small boat, was mistakenly released from HMP Chelmsford in Essex in late October.Kaddour-Cherif was found just a three minute walk from where Kebatu was re-arrested on 26 October.In a statement after Friday's arrest, Justice Secretary David Lammy said: "We inherited a prison system in crisis and I'm appalled at the rate of releases in error this is causing."I'm determined to grip this problem, but there is a mountain to climb which cannot be done overnight."That is why I have ordered new tough release checks, commissioned an independent investigation into systemic failures, and begun overhauling archaic paper-based systems still used in some prisons."Conservative Shadow Justice Secretary Robert Jenrick said Kaddour-Cherif was "just the tip of the iceberg".He said "immediate action" was needed, "because the British people are being put at risk".