Foreign minister says nature of Idlib assault not yet confirmed, reaction would only come if suspicions proven; Macron has said chemical weapon use would trigger military reprisal

Authorities ask public for help in locating suspect behind blast that wounded 13; prosecutor says investigation focuses on 'attempted murder in relation with terrorist undertaking'

Police appeal to public for help in locating man believed to be behind attack; justice minister says too soon to say whether the explosion was terror act

Macron calls explosion in Lyon an attack; police say device contained 'screws or bolts,' was placed in front of a bakery in city's historic center

Separately, Belgian anti-Semitism watchdog files complaint against man who called himself 'gasman' on Facebook, listed Auschwitz as workplace

French jihadist, who killed four people in 2014 anti-Semitic rampage, is accused of acting as jailer to 4 French journalists taken hostage in Aleppo

Foreign minister says Tehran's decision to back away from the nuclear deal and possibly restart high-level enrichment a 'bad reaction' to US moves

EU's foreign policy chief and foreign ministers of Britain, France, and Germany say they will assess Tehran's adherence to 2015 pact, remain determined to keep agreement alive

One suspect is a minor serving a probationary sentence at an educational facility for trying to travel to Syria; other three known to law enforcement for common offenses

Alain Finkielkraut compares protesters responsible for near-cancellation of his university speaking event to fascists in 1930s Europe