A group of passengers could face hefty fines after delaying a Vueling flight in Barcelona out of sympathy with a Senegalese migrant on board.
The Senegalese man, in handcuffs, was eventually deported to Dakar on the flight. The jet took off after police had come on board to stop the protest.
The 11 protesters could be fined up to €225,000 (£197,000; $258,000) each for endangering flight safety.
The protest delayed both that flight and the return flight from Dakar.
A Spanish journalist, tweeted a video clip showing the protest on the budget airline jet.
Ho hem aconseguit! Vol de deportació aturat. Ara venen les autoritats a emportar-se la persona! La solidaritat és la nostra millor arma! pic.twitter.com/x8OSUzu2Dx
— Anna Palou Solé (@annapalou) July 15, 2017