The capital’s main hospital, Rigshospitalet, had received a “small group of patients” for treatment from the incident, possibly more than three, a spokesman told Reuters. He had called in extra staff, including surgeons and nurses, the spokesman added. Police did not provide further information about the arrest, nor did they say how many were injured. They advised people inside the mall to stay put and await police assistance and asked others to stay away from the area. “We don’t yet know for sure how many are injured or dead, but it is very serious,” Sophie Hæstorp Andersen, the mayor of Copenhagen, said in a Facebook post. Police said on Twitter that there was a “massive” presence at the mall and called on the public to send footage and other information from the scene. Armed police officers stand near an ambulance outside a shopping center in Copenhagen after a shooting on Sunday. Police say one person is in custody. (Olafur Steinar Gestsson/Ritzau Scanpix/The Associated Press) Several fire engines were also parked outside the mall. Images from the scene showed people running out of the mall, and Danish broadcaster TV2 shared a photo of a man being put on a stretcher. Witnesses said people were crying and hiding in shops. Laurich Hermansen told Danish broadcaster DR that he was in a clothing store in the mall with his family when he heard “three or four bangs. Really loud bangs. It sounded like the shots were right next to the store.” An event in southern Denmark to celebrate the end of the first three stages of the Tour de France cycling race, organized by Denmark’s crown prince and attended by Prime Minister Mette Frederiksen, was canceled late Sunday, the Royal House said. Website. The women comfort each other outside the Field Mall after Sunday’s shooting. (Olafur Steinar Gestsson/Ritzau Scanpix/Reuters) The shopping center is located on the outskirts of Copenhagen directly opposite a metro line that connects the city center with the international airport. A major highway is also adjacent to the Fields. British singer Harry Styles was scheduled to perform later that evening at a concert venue less than a mile from the mall. The concert will go ahead as planned after a close dialogue with police and half the audience has already entered the venue, concert promoter Live Nation said in an emailed comment to Reuters.