Satellite images have revealed the extent of the damage to the ancient Temple of Bel in Syria's Palmyra city by Islamic State jihadists.
The United Nations Institute for Training and Research said the images confirmed the main building had been destroyed.
The reports come a week after IS blew up the smaller Baal Shamin temple in the UNESCO-listed ruins.
IS, which controls swathes of Syria and neighbouring Iraq, captured Palmyra on May 21, sparking international concern about the fate of the heritage site described by UNESCO as of "outstanding universal value".
Earlier this month, IS beheaded the retired long-time chief of antiquities in Palmyra, Khaled al-Assaad.
