One person was killed and several injured after a car mounted the pavement and smashed into a shop window in Berlin on Wednesday morning. A man is believed to have driven his car into people on a crowded shopping street, police said, but it was unclear whether he had done so deliberately or had suffered a medical emergency. He was arrested at the scene. Photos showed the silver Renault lodged in the window of a high-end perfume shop. Police said three people had life-threatening injuries and six were seriously hurt, and one person was confirmed dead. Police spokesman Thilo Cablitz said the car first hit a group of people on a street corner, before veering off the road a short distance later and ending up in the shop window. He said investigators were trying to reconstruct what happened. The driver, a 29-year-old German-Armenian living in Berlin, was initially restrained by passers-by before being arrested by police, said Mr Cablitz. The silver Clio had a Berlin number plate. The crash took place close to the site of <a href="https://www.thenationalnews.com/world/europe/2021/08/10/security-failures-let-berlin-truck-terrorist-slip-through-net/" target="_blank">a 2016 terrorist attack</a>, Germany's worst in modern times, when a lorry drove into Christmas shoppers and killed 12. The attacker Anis Amri was later shot dead in Italy. Four people were killed in a 2019 incident in Berlin when a driver suffered a seizure and drove his sports vehicle on to the pavement. About 130 emergency workers were at the scene on Wednesday in one of Berlin's main shopping districts. A police helicopter landed in the road while rescuers treated the victims. A witness to the aftermath was actor John Barrowman, who was unhurt but shaken after hearing “the bang and the crash … we came out and we just saw the carnage”. An emotional Mr Barrowman told Sky News: “These people were just having breakfast at a cafe, it's just awful.” He said he saw a body lying in the middle of the street, part of what was once the glitzy commercial hub of West Berlin and close to one of the city's best-known landmarks, the war-ravaged Kaiser Wilhelm Memorial Church. Berlin Mayor Franziska Giffey visited the scene and said she was "deeply shocked... the police are working at full speed to clear up what happened".