The Audaz will pick up 15 migrants who arrived in Lampedusa on the Open Arms, Spain's quota of migrants agreed with France, Germany, Portugal and Luxembourg.
Human rights groups called on European governments on Sunday to tell a charity ship where it can dock and let more than 140 migrants rescued in the Mediterranean disembark in safety.
The Aquarius, run by Franco-German charity SOS Mediterranee and Doctors without Borders (MSF), rescued 141 people in two separate operations off the Libyan coast last week.
The boat had just started heading north on Sunday toward Europe when Libyan coastguards called it back to pick up 10 migrants spotted aboard a small fiberglass boat.…