Icebreaker Almirante Irízar moving northwards northwards with German vessel Magdalena Oldendorff close behind (28 July). Worsening conditions forced the rescue attempt to be called off. Having left the Magdalena Oldendorff in a safe location in the Bay of Muskegbuta the icebreaker is trying to break through the Antarctic ice-belt headed for Buenos Aires. Envisat ASAR data has been supplied to the icebreaker to assist in plotting the safest course though weaker points in the ice.