Warring parties in Yemen have been urged by the UN Children's Fund (UNICEF) to limit harm to civilians as obligated under international law.
The call follows the deaths of at least seven children in an airstrike in the north of the country on Saturday.
Yemeni Government forces, supported by a Saudi-led coalition, have been battling rebels for control of the country.
UN-backed peace talks between the two sides were recently suspended.
Dianne Penn reports.
The children, who were between the ages of six and 14, were studying at a religious school in a village in Sa'ada governorate.
Twenty-one others were also injured in the attack, and UNICEF stated that the death toll could rise further.
The agency said an intensification in fighting over the past week led to a sharp rise in the number of children killed or wounded by airstrikes.
UNICEF called on all sides in Yemen to respect and abide by their obligations under international law, including to only target combatants and to limit harm to civilians and civilian infrastructure.
Dianne Penn, United Nations.
Source: United Nations Radio.