TWITTER A hostage situation has broken out in Paris after a police officer was reportedly stabbed to death

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The officer, identified as 42-year-old commander Jean-Baptiste Salvaing, was stabbed nine times outside his property after returning home at around 8.30pm. The attacker then took the policeman's wife and three-year-old son hostage in their home in Magnanville, northwest of the French capital. The killer is believed to have had pledged his allegiance to the Islamic State (ISIS) during the frenzied attack. The brutal murders have also been claimed by the ISIS news agency A’maq. The killer has been named as 25-year-old Larossi Abballa, who had already been sentenced to three years in prison with six months suspended in 2013 for “links to criminals preparing terror attacks”.

Abballa posted several videos pledging his allegiance to ISIS and claiming responsibility for the brutal murders using the application Facebook live, according to French media. The killer reportedly called for the killing of police officers, prison guards, journalists, and rappers, citing several names, according to Le Fiagro. Abballa allegedly posted several pictures of his victims on Facebook, as well as a video of the family. Having already killed the child's two parents, Abballa chillingly said: “I don’t know know what to do with him yet.” Abballa hid behind the door of the Mr Salvaing’s house waiting for the police commander to come home before launching the brutal attack. Mr Salvaing attempted to flee, crying to neighbours to ring the police and run, before his attacker stabbed him to death.

IG The killer has been named by French media as Larossi Abballa, who had terror links

GETTY The attacker was shouting 'Islamic State' slogans, according to unconfirmed reports

The killer reportedly tweeted he had also killed the commander’s wife. Police who rushed to the scene spent hours attempting to negotiate with Abballa, who refused to cooperate and spoke only about religion, according to Le Parisien. Explosions and gunfire were heard in the Paris suburb. Jérôme Bonet, a spokesman for the national police force, said: “The negotiation was brief because we were dealing with an individual who had absolutely intention to negotiate. “He didn’t ask for much, he was looking for confrontation, his logical was quasi-suicidal.” French SWAT teams burst into the home shortly after midnight. The body of the policeman’s wife, Jessica Salvaing, 36, who was a secretary for a local police force and worked for the French interior minsitry, was found at the scene. The toddler, who was rescued alive from the horrific scene, is in a “shocked” state and has been taken to a hospital in Paris.

I don’t know know what to do with him yet

Three knives, including one covered in blood, three phones and a list of targets were found at the scene. Police officers also found a Koran, a long white robe usually worn in mosques and a book titled ‘Genuine Belief’. Houses nearby the murder scene were evacuated during the hostage situation. Three men aged 27, 29 and 43 believed to be “relations” of Abballa have been placed in custody in connection with the double murder. Abballa, who stood on trial with seven other defendants for terror offences, had taken part in a jihadist organisation with links to Pakistan, according to police sources. The French national, from Mantes-la-Jolie in north central France around 48km from Paris, had also been investigated in connection with another jihadist network linked to Syria. Despite Abballa’s links to terrorist organisations, he “did not present a sufficient and concrete enough threat”, according to security sources cited by Le Parisien.

TWITTER Emergency services as well as elite police officers are at the scene

The 25-year-old had a police record for theft, handling of stolen goods and assault. French president François Hollande denounced the “abominable” murders, saying an investigation would establish “the exact nature” of the killings. Mr Hollande said: “We must act together in the fight against terrorism, this is not a battle that concerns only one country…it calls for decisive international action.” France's interior minister Bernard Cazeneuve has denounced the killings as an "abject act of terrorism".

GETTY A little boy was rescued by special police forces

TWITTER Unconfirmed reports claim the commander's wife has also been killed

Interior ministry spokesman Pierre-Henry Brandet said: "The police commander was killed by the individual and we discovered the body of a woman." Mr Brandet confirmed “police have managed to rescue a child from the scene” after they had gunned down the murderer. He added: "The assailant, the criminal was killed. Thankfully, a little boy was saved. He was in the house. He's safe and sound. He was saved by police officers."

Paris Terror Attack 2015: One year on Sun, November 13, 2016 Terrorists slaughtered 130 people during a series of coordinated terror attacks in Paris on Friday 13th November 2015. The attacks took place at the Bataclan concert hall, Boulevard Voltaire, Belle Equipe bar, rue Fontaine au Roi, Petit Cambodge restaurant, and Le Carillon bar. Play slideshow REUTERS 1 of 86 French President Francois Hollande and Paris Mayor Anne Hidalgo lay a wreath of flowers as they unveil a commemorative plaque next to the

GETTY The interior minister revealed the commander's wife worked for the ministry

TWITTER Witnesses claim the suspected killer shouted 'Allah akbar'