Three Al-Jazeera journalists arrested for flying drone over Paris

Three journalists have been arrested for illegally flying a drone over Paris, according to the city's prosecutors' office.

In a statement, the office said three foreign nationals aged 70, 54 and 36 - all believed to work for Al-Jazeera - have been taken into custody after officers spotted the drone flying in the Bois de Boulogne woods in the western part of the city.

Flying drones without a licence is illegal in France and the trio could face a maximum of a year in prison or a 75,000 euro (£54,900) fine.

It comes after five drones were spotted flying over the city for two nights running.

Read: Drones spotted flying over Paris for a second night

An investigation has been launched after unauthorised drones were spotted flying over Paris for a second night in a row.

Five drones were seen last night in addition to the five spotted a night earlier, local media reported.

Stephane Le Foll, a spokesman for the French government, said the drones were not a security risk and told a press conference: "There is nothing to worry about.

"Drone have been spotted and investigations launched .... We are mobilised on a matter which is, and should, be taken seriously."

Paris has remained on a state of high alert following last month's attacks on the offices of Charlie Hebdo and a Jewish supermarket by Islamist extremists.