In France, four police officers were killed in a stabbing attack at the police headquarters in central Paris last night. Officials said, a knife-wielding man who worked at police headquarters went on a rampage, stabbing to death four employees before himself being shot dead. A fifth person was critically injured and was being treated in hospital after the deadliest attack on police in France in years, the motive of which was still unclear. The attacker killed three male officers and a female assistant before being shot in the courtyard of the square stone building next to Notre-Dame cathedral in the historic heart of Paris.

Sources said, the attacker, a 45-year-old IT worker in the police intelligence department, had converted to Islam 18 months ago. They said, Police searched his home in Gonesse, a low-income suburb north of Paris, and took his wife into custody.

Interior Minister Christophe Castaner said, the assailant had never shown any behavioural problems.