The signals, believed to be from the plane’s locator beacon, come after two previous signals were detected in the area over the weekend.

They have been heard within an area 20 miles long and ten miles wide, 650 miles off the coast of north-west Australia.

The search is co-ordinated by Angus Houston, a retired air-chief marshal in the Australian air force.

“With lots of transmissions, we’ll have a tight, small area, and in a matter of days we might be able to find something on the bottom that could confirm that this is the last resting place of MH370,” Mr Houston said.

Image credit: Getty