A man who killed two people in a knife attack in the southeastern French town of Romans-sur-Isere at the weekend has been charged with terrorism offences and murder, the French anti-terrorist prosecutor’s office said on Wednesday. Five people were also wounded in Saturdays attack. The 33-year-old refugee from Sudan probably acted alone, "without having been given any orders by a terrorist organization", the office said in a statement. It added that the man, who worked locally, had not been known to police forces or intelligence services. He had arrived in France in August 2016 and obtained refugee status in June 2017. During a subsequent search of his home, authorities found handwritten documents that included arguments about religion and a complaint about living in a “country of non-believers.” France has experienced a wave of attacks by extremists in recent years. Bombings and shootings in November 2015 at the Bataclan theater and other sites around Paris killed 130 people, and in July 2016 a militant drove a truck through a crowd celebrating Bastille Day in Nice, killing 86.