STOCKHOLM—A 22-year-old Afghan man who is suspected of having stabbed seven men in a town in southern Sweden, leaving three of them in critical condition, was remanded in pretrial custody for at least two weeks on Friday. The Eksjo District Court added that there was a flight risk, Swedish broadcaster SVT said. The suspect, who was not identified under Swedish rules and who faces seven counts of attempted murder, denied any wrongdoing. “I have done nothing. I was at home,” the suspected shouted at the beginning of the custody hearing and banged his fist on the table, Swedish media reported. The man, who has Afghan citizenship, was described by Swedish media as an asylum-seeker whose residence permit had expired last year. Local news reports also have said the man had a history of mental health issues. He is known to police for petty crimes. On Friday, he entered the court …