Two men in Oslo were attacked with a knife in a presumed homophobic attack, police in the Norwegian capital told broadcaster NRK. The victims, aged between 20 and 30, were taken to hospital with serious but not life-threatening injuries. Four teenagers previously known to the police, aged between 14 and 17, were arrested as suspects. They are accused of grievous bodily harm. The attack took place at around 1 am on Sunday at a restaurant in the Tjuvholmen harbour area. There is no evidence that the victims and the alleged perpetrators know each other, said a police spokesman. Oslo was shaken by…