An area in Paris has been on lockdown after an armed man reportedly took several people, including a pregnant woman, hostage in one of the buildings, local media report.
At least one man was lightly injured while fighting with the hostage-taker and escaping before the BRI officers arrived on the scene, a police source said. The information could not be officially confirmed.
More than a dozen heavily-armed police officers, firefighters and rescue workers were stationed outside the building where the hostages were being held, located in a crowded neighbourhood in the centre of the French capital.
French police with their dog secure the street as a man has taken people hostage at a business in Paris, France, June 12, 2018.
The man has asked to be put in contact with the Iranian embassy.
The man was described as "determined and violent" and claimed to have a handgun and a bomb according to police, The Guardian reported.
The area around the incident in the 10th arrondissement of Paris was ringed off by police.
Negotiations with the suspect were taking place, according to an Interior Ministry official who couldn't be identified because the operation was in progress.