The UN has accused the warring parties of violating laws of war and a humanitarian ceasefire which took effect but could not take a hold in Yemen this past Monday.
The UN Under Secretary General for Humanitarian Affairs and Emergency Relief Stephen O'Brien told the meeting of the UN Security Council on Tuesday the warring parties, including the Saudi-led Arab coalition, violated the truce in a sign of their disrespect of the international law.
All parties in Yemen are continuing the fighting marring the truce and killing more civilians, news agencies quoted O'Brien as saying.
We have prepared a plan to reach out around 3 million Yemeni people including 22.000 children below five suffering from extreme malnutrition but we still can't bring the plan into effect because of the persistent conflict, he said.
O'Brien said there is still a chance to go ahead with the plan as they are looking forward to commitment to and cooperation of all parties on the humanitarian pause.
The truce was revealed on Saturday by the Arab coalition which has been bombing the Houthi militants since late March.
However, it was violated shortly after it took effect on Monday to be the third truce that could not take a hold in months.
The four-months conflict sparked by the ouster of the UN-backed government by the Houthis has left 80% of the Yemeni people in need of emergency aid.
A blockade on all Yemeni sea, land and air ports which was part of the Saudi-led military intervention added to the crisis since it has deprived the country of all imports and exports. Yemen imports around 90% of its food and its fragile economy depends largely on oil exports.
The meeting of the Security Council discussed the situation in Yemen.
Media reports quoted the Yemeni representative to the Council as urging the UN to take all necessary measures so that the Houthi militant group adhere to the UN resolutions on the country.