Kuala Lumpur: The unprecedented mystery behind the disappearance of Malaysian Airlines (MAS) flight MH 370 deepened yesterday when relatives claimed they were able to call the cellphones of their missing loved ones.

Fraught with worry: Relatives of passengers aboard the missing Malaysia Airlines plane wait for the latest news as investigators announced they are widening their search for the missing Boeing 777. Pics/AFP, Getty Images, PTI

Family of some of the 239 people on board the vanished Boeing 777 said that they were getting ring tones and could see them active online through a Chinese social networking service called QQ.