Basel - Gunmen opened fire inside a cafe in the Swiss city of Basel on Thursday, leaving two people dead and a third critically wounded, authorities said.A statement from the office of the local prosecutor said two men entered Cafe 56 at 20:15 on Thursday and unleashed a salvo of gunfire. They then escaped in the direction of a nearby railway station.The identity of the three victims had yet to be determined, authorities said. No one else was hurt in the attack.Investigations are still ongoing but a police officer told The Associated Press: "This is a local incident. It has nothing to do with Islamists or terrorism."He spoke on condition of anonymity because he was not authorised to speak publicly.Forensic teams could be seen going in and out of the cafe collecting evidence.The attack comes a day after the town concluded celebrations of Fasnacht, the largest carnival in Switzerland.