French security officials have detained a third person in connection to a knife attack south of Lyon that left two people dead and five others wounded, one of them in critical condition, authorities reported on Sunday.

French anti-terror prosecutors said that the third arrest was made late on Saturday night and that all three of the suspects are Sudanese.

On Saturday, in the small town of Romans-sur-Isère, an unnamed assailant went on a rampage. French citizens, who have been in lockdown during the ongoing coronavirus pandemic, were out in the streets conducting their permitted daily food shopping.

That is when the attacker attacked a family in the center of Romans-sur-Isère. He slit the throat of the father in front of the man’s wife and son. According to the mayor of Romans-sur-Irène, the assailant then went into a tobacco shop attacked the owner. The owner’s wife stepped in and was also injured. He then entered a nearby butcher’s shop and took another knife.