At least eight civilians were killed and 20 wounded on Monday in explosions sparked by Saudi-led air strikes on rebel arms depots in the Yemeni capital, a medical source said.
The strikes on the Mount Noqum base on the eastern outskirts of Sanaa sent munitions and shrapnel flying into adjacent residential neighbourhoods, witnesses said.
Debris from the explosions fell as far as five kilometres (more than three miles) away, triggering an exodus of residents to safer areas.
A previous coalition air raid on the Mount Noqum base on May 12 sparked similar secondary explosions that killed at least 69 civilians and wounded 250.
An April 21 raid on a missile base in the rebel-held capital triggered explosions that killed 38 people and wounded 532.
Other air strikes on Monday hit rebel positions in Amran, north of Sanaa, as well as arms depots in western Hodeidah province, residents said.
Coalition warplanes struck other rebel positions in the southern province of Daleh, military and tribal sources said.
In the rebels' stronghold of Saada, overnight coalition raids struck rebel-held arms depots in the town of Marran, as well as rebel positions in Ibb, farther south in central Yemen, witnesses said.