our viewers around the world and the united states. thanks for joining us. i'm natalie allen. more now on our developing story, australia calling it an important and encouraging lead. ships from china and australia have detected pulse signals in the southern indian ocean. this is first in this 30-day mystery. search planes and ships now heading for the area where the chinese boat picked up signals two days in a row. on saturday a chinese patrolling boat determined the first detection of a pinging signal from deep in the indian ocean, 14,700 feet deep. it lasted just 90 seconds. experts say it was the same frequency that airplane flight recorders emit. chinese reporters also claiming they had spotted white objects in the water about 90 kilometers away. no confirmation on what those