A shooting at a school in the southern French town of Grasse has injured at least two people, police sources say, with a report suggesting it was an incident between two students.

One person was arrested but another suspect is on the run, a police source said.

Anti-terrorist commandos from the elite Raid force were sent to the scene, French news channel BFMTV reports. The government sent out a warning of a terrorist attack via its mobile app.

Grasse, the capital of France’s perfume industry, is about 44km (27 miles) from the city of Nice, where a lorry attack in July killed 86 people.

France remains under a state of emergency after a string of deadly attacks in the past 18 months.