Yemen
The dead included at least 17 were children and 20 women, Doctors Without Borders said.
The war has pushed Yemen to the brink of famine, the U.N. says.
"All the parties to this conflict have displayed a ruthless and wanton disregard for the safety of civilians."
"If today they take Abdul Kader and we're quiet, tomorrow they may take me or someone else."
WHAT'S HAPPENING
Prime was working for the World Bank in Yemen when she was abducted in February.
The move demonstrates Iran's rational nature, the president said.
The base was previously the site of U.S. intelligence operations against al-Qaida's Yemen branch.
But fighting still rages just outside the city.
The five-day truce is meant to help allow aid into the war-torn country.
All eyes are on Tehran's role in the conflict, but there are other players involved too.