A Sudanese national, who was on France’s national security list, has been arrested on suspicion of stabbing a man to death during a dispute over what investigators say was the possession of a packet of biscuits.

The killing took place during the night of Jan. 28 to 29 outside the Adoma asylum center on Rue de la Grosse Borne in Vernon. As reported by France Bleu, emergency services were alerted at approximately 1:30 a.m. after a caller reported a man lying wounded in front of the residence. Police arriving at the scene found the victim already dead on the access ramp to the building.

At a press conference on Monday, public prosecutor Rémi Coutin explained how investigators traced bloodstains from the body to a room inside the residence that appeared to have been occupied informally. Two sleeping bags were discovered there, believed to belong to the victim and another individual. The victim, a 40-year-old Tunisian national, was later identified through medical documents found among his belongings.

A witness told authorities he had seen a man close to the victim shortly before the emergency call, holding what appeared to be a large knife.

A forensic examination later “revealed several stab wounds, including two wounds to the chest and one to the right upper limb.” Coutin said. Authorities are working on the likely cause of death being an external hemorrhage, which led to cardiac arrest.

Police have so far been unable to recover the murder weapon.

Using mobile phone geolocation data, the suspect was tracked to Paris, and a 47-year-old Sudanese man was arrested. He is believed to have been living in France legally, but was on a national security watchlist due to early signs of radicalization.

A second man, a 52-year-old Moroccan national, was arrested later the same day in Vernon. Investigators say he drove the suspect to the Mantes-la-Jolie train station after the incident. During questioning, he reportedly said he was unaware a killing had taken place and believed only that a fight had occurred.

Both men were presented before an investigating judge in Évreux, with prosecutors opening a judicial inquiry on suspicion of murder, a crime punishable by up to 30 years in prison.

Both suspects have been placed in pretrial detention.