EU foreign affairs head Federica Mogherini said Monday the bloc had "no more excuses" not to act after the latest migrant disaster in the Mediterranean and demanded "immediate" action.

"With this latest tragedy ... we have no more excuses, the EU has no more excuses, the member states have no more excuses," Mogherini said as she arrived for an emergency foreign and interior ministers meeting on the loss of a ship with some 700 illegal migrants on board.