The UN humanitarian agency, OCHA, says that one of the challenges for Gaza’s recovery will be clearing land mines and other unexploded ordnance left behind by 15 months of conflict, Al Jazeera reports.

OCHA cited a recent report from the Global Protection Cluster, a group of UN and other humanitarian organisations, which estimated the explosives buried in the rubble in Gaza would take “$500 million over 10 years to clear” from some 42 million tonnes of rubble which also contains asbestos, other hazardous contaminants and human remains.