A woman in her 40s is in hospital with life-threatening injuries after a funfair ride malfunctioned at a country show in south London, the Metropolitan police said. A man in his 40s is also receiving treatment for potentially life-changing injuries. Lambeth country show in Brockwell Park reopened on Sunday, but the rides remained cordoned off. An 11-year-old girl, the man and woman in their 40s and a man in his 50s were taken to hospital after the incident. The man in his 50s and the 11-year-old girl had been discharged from hospital, Scotland Yard said. The problem occurred during the first day of the free event. A ride topped with a giant frog was among those that could be seen behind tall black fencing on Sunday. A police spokesperson said emergency services responded at about 6.20pm on Saturday to a fairground ride having failed. They added: “Four people have been taken to hospital. Following a full assessment by medics, a woman in her 40s remains in hospital with life-threatening injuries. A man in his 40s is also receiving ongoing treatment for potentially life-changing injuries. “The man in his 50s and the 11-year-old girl have both been discharged from hospital. Officers have attended the scene today alongside the Health and Safety Executive as inquiries continue to establish the full circumstances.” Signs saying “Apologies for any inconvenience, this ride will not open today” have been pinned to wire fencing around the fairground area. An investigation into the incident, led by the Met and the HSE, was under way, Lambeth council said. A spokesperson added: “Very sadly, a funfair ride at the country show malfunctioned yesterday evening, injuring four people. They are being cared for in hospital and our thoughts are with them. “We thank the emergency services for their swift response at the country show yesterday and for the support they are providing to the affected families. Following this incident, and to allow a full investigation, funfair rides at the show will be impacted by closures for the second day of the country show.” The council-organised show has been running as a free community event in the park since 1974. Each year it attracts more than 120,000 people across the weekend. Helen Hayes, the Labour parliamentary candidate for Dulwich and West Norwood, posted on X on Saturday evening: “I’m shocked to learn of the failure of a fairground ride at Lambeth country show earlier this evening. My thoughts are with those who were injured and all who witnessed this horrific event. Thank you to the emergency services who attended. There must now be an urgent investigation.” The Health and Safety Executive is making inquiries into the incident, a spokesperson said.