MILAN (AP) — A Doctors Without Borders spokesman aboard a rescue ship carrying 356 migrants says the fact that it has become "the new normal" for such ships to be stuck at sea for weeks waiting for permission to dock is "appalling."

Jay Berger, project coordinator, on Thursday called for concrete action by the European Union and member states, saying the failure to identify a port of safety and disembark the migrants is "a complete shame. It is inhumane."

The Ocean Viking ship conducted four rescues off Libya from Aug. 9-12, and is in its 13th day without being permitted to disembark the passengers. It has been sailing between Malta and the Italian island of Linosa.

Berger said that the situation on board remains "manageable," but anxiety is growing.