Five men and a woman which prosecutors said have links to far-right circles have been arrested in several locations across France on suspicion of preparing a 'violent' aatack against President Emmanuel Macron.
A 23-year old describing himself as a 'nationalist' has been placed under investigation over plan to attack French president at Bastille Day parade.
French military intelligence chief told parliamentary committee that his agency was informed of plot by a Brazilian national via a 'partner' agency.
French TV channel Canal Plus broadcasts secretly recorded film shot over six months within group in France planning suicide attack.
Paris prosecutor's office confirmed the arrests but gave no details of where the teenagers live, their identities, or where they were arrested.
Interior minister said the French pair were in contact with another Frenchman thought to be in Syria and behind the plot targeting police and army.
Iraqi Prime Minister Haider al-Abadisaid said attacks were prepared by IS in Iraq, but French and US officials were unaware of a threat.
A French plan to kidnap and kill the extremist cleric was result of frustration at lack of cooperation with UK authorities, a report claims.
The 23-year-old man from an air base near Lyon, said by the interior minisrty to be close to the far-right, was allegedly preparing a gun attack.
Police found weapons and explosives at the home of one of the suspects in the town of Marignane, near Marseille.