Updated

The Latest on a shooting and hostage-taking in southern France (all times local):

12:35 p.m.

A police union official says a suspect has shot dead one person and seriously wounded another inside a supermarket in the southern French town of Trebes.

Yves Lefebvre, secretary general of the SGP Police-FO union, says the suspect earlier fired six shots at police officers who were on their way back from jogging near the city of Carcassonne Friday morning. One police officer was injured in the shoulder but is not in life-threatening condition, Lefebvre said

The police officers, based in the southern city of Marseille, were on a temporary mission in Carcassonne, he said.

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12:20 p.m.

French counterterrorism prosecutors are taking charge of the investigation into the shooting of a police officer in southern France that has led to an apparent hostage-taking at a supermarket.

The Paris prosecutor's office said counterterrorism investigators are taking over the probe into the ongoing incident Friday in the town of Trebes, but did not provide details on why.

There are unconfirmed media reports that the assailant claimed connections to the Islamic State group.

Interior Minister spokesman Frederic Delanouvelle told The Associated Press that there is one suspect and police are trying to subdue him. He provided no details of how many people were inside the supermarket or were believed held hostage.

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12:05 p.m.

French authorities say a police operation is taking place in a small town in southern France after a police officer was shot and wounded.

A suspect has been surrounded at a supermarket in the town of Trebes, south of Toulouse, and might have taken hostages, national police said.

The French Interior Ministry said on its Twitter account Friday that police and rescue operations are the priority.

Authorities in the Aude region are warning people to avoid the area around the supermarket.