The suspect was detained at the Gonesse hospital (Val-d’Oise), where he was receiving treatment for burns suffered on his arm and face while handling the explosives.
A 26-year-old Russian-Ukrainian was arrested on Tuesday night, suspected of planning an attack with homemade explosives, French media reported.
Police reportedly found in his hotel room components used to make a improvised explosive device. The suspect was injured when he was handling a device made with TATP, a powerful homemade explosive.
The suspect is being interrogated by the French security agency DGSI, according to Le Figaro.
Authorities are investigating suspicions that he may have planned a attack on a flight to Ukraine leaving Roissy-Charles-de-Gaulle airport near Paris, according to reports.