An agreement between Britain and France allowing the UK to return some migrants who arrive in England via clandestine crossings of the Channel came into force on Tuesday.
Nour Attaalah, a 25-year-old Gazan who was awarded a scholarship to study political sciences in France, left the country for Qatar on Sunday after she was found to have posted on social media calls for the killing of Jews, causing a political row which has led to the suspension of the scholarship scheme for students from Gaza.
French government ministers have given a strongly worded statement condemning Spain's transport minister Óscar Puente's remarks in which he called the youngters "Israeli brats".
The move comes after officials said the female student from Gaza will have to leave France after the Sciences Po university in the northern city of Lille revoked her accreditation over the online posts.
François Bayrou joined a growing number of cabinet ministers in criticising the trade deal struck between EU chief Ursula von der Leyen and US President Donald Trump over the weekend.
Several dozen French passengers on Wednesday were kicked off a flight leaving the Spanish city of Valencia for Paris, for what Spanish police and the airline Vueling described as unruly behaviour.