A 10-metre high sculpture of a man's buttocks is part of an art exhibition that has been shortlisted for the prestigious Turner Prize.

The search for a missing Malaysia Airlines jetliner suffered a further setback after Australian officials said wreckage from the aircraft was not on the seabed in the area they had identified.

Investigators with an Australian agency have concluded that the missing Malaysian jet is not within an area thought to be its most likely resting place after an unmanned submersible found no sign of the plane.