for any sign of the plane, possible wreckage or its passengers. >> reporter: hi, karen. it's the mid of the night in that part of the world now. rescuers are waiting for dawn in a few hours' time so they can resume the search by air, looking for any trace of this malaysian airlines flight, trying to look for any wreckage. the on reported sightings have been from two vietnamese planes who said they saw two oil sliks around 6 x 9 miles that would be consistent with the iengines an fuel of an airliner of that size. we're not going to get much more until daylight when the search can continue. it's a big multi-national search. we've had airplanes and vessels