Divers sift through debris and seabed mud for Indonesia plane black boxes

Police officers carry a part of aircraft recovered from the Java Sea where a Sriwijaya Air passenger jet crashed (Dita Alangkara/AP)

Indonesian navy divers are still searching through plane debris and seabed mud looking for the black boxes of a Sriwijaya Air jet that nosedived into the Java Sea over the weekend with 62 people aboard.

A navy ship earlier picked up intense pings being emitted from the boxes containing the cockpit voice and flight data recorders of the Boeing 737-500 that went down on Saturday minutes after taking off from the capital, Jakarta, in heavy rain.