MH370 search on right track: ATSB

The head of Australia's transport safety bureau (ATSB) has defended the fruitless hunt for missing Malaysia Airlines Flight MH370, saying he is confident that search teams are targeting the right area.
Satellite analysis in the days after the Boeing 777 went missing on March 8 with 239 people onboard placed the jet somewhere in a huge tract of the Indian Ocean stretching from near Indonesia south towards Antarctica.
But in a setback, the area believed to be the jet's most likely resting place based on the detection of acoustic "pings" was Thursday ruled out after an extensive underwater search.
Australia's Transport Safety Bureau chief commissioner Martin Dolan told AFP the source of the acoustic transmissions, thought to be man-made, was still a mystery.
"To be frank, we don't know. We like to be the experts but sometimes we just don't know the answer," he said, refusing to speculate on whether they came from the Australian vessel hunting for signals from the aircraft's black boxes, according to AFP.