The Yemeni Civil War, which began in 2015, has led to what could likely become the worst famine in a century.
The rebels blamed the Saudi-led coalition for the airstrikes.
Previous ceasefires significantly slowed fighting, though have not yet ended the conflict.
Nineteen people were killed when a Saudi-led coalition airstrike hit an MSF facility in northern Yemen.
The claim has not been independently confirmed and civilian casualties are unknown.
A Moroccan F-16 warplane has gone missing while on a mission with Saudi-led forces in Yemen, Morocco's military said on Monday