The European Commission is concerned by a ruling by Poland's highest court that EU treaties are incompatible with its constitution and will use all the "tools at its disposal" to ensure the primacy of EU law in Poland, EU Justice Commissioner Didier Reynders says. SOUNDBITE

Interested in licensing this video ? Get in touch 👉 http://u.afp.com/UBbQ
N.B.: AFP’s services and content are for professional use only