ROME—Italy seized a Spanish aid ship that had refused to turn over rescued migrants to a Libyan coast guard vessel, an incident that reflects growing tensions over an agreement Italy struck with Libya last year to stem the flow of refugees.
Officials on Monday seized the boat, operated by Proactiva Open Arms, a Spanish nongovernmental organization dedicated to rescuing migrants fleeing Libya to Italy, after the crew refused to hand over more than 200 migrants to Libyan authorities.The NGO said it declined the order because...