Teams searching for the missing Malaysia Airlines plane have again heard signals that could be consistent with black box.
The search chief Angus Houston said Australian vessel heard the signals again yesterday afternoon and evening.
He said signals got earlier had also been further analysed by experts who concluded they were from specific electronic equipment.
Houston said the search is being carried out in right area.
Flight MH370 disappeared on 8 March, carrying 239 people.
Malaysian officials say based on satellite data, the plane ended its flight in the southern Indian Ocean, thousands of kilometres from its intended flight path.