Chandlers forces may have spotted couple 's yacht off Tanzania . Yacht was towing 306 skiffs of type used by pirates . British couple left Seychelles for Tanzania on October 23 . Yacht 's distress beacon activated October 21 .
European Union forces may have spotted couple 's yacht off Somalia . Yacht was towing two skiffs of type used by pirates . British couple left Seychelles for Tanzania on October 21 . Yacht 's distress beacon activated October 23 .