operation which now covers some 58,000 square kilometers. that is about 22,000 square miles. >> total of four suspected segales hasegal segal -- signals have been picked up in line with the estimated flight path. >> right now ships and aircraft are working the area of course looking for evidence of debris. >> all right, let's get the latest now on the search. our correspondent joins us live from perth, australia, aaron, after 3:00 in the afternoon in perth. we haven't had any update on search operations from air chief marshal angus houston. what do we know about any progress made on this day? >> hi, rosemary, well i spoke to spokesperson from the british ministry of defense just a short while ago. she tells me that the british vessel, the "hms echo" is in fact moving in the direction of the ocean shield in order to be able to support it in its