US
Strikes targeted reinforcements sent by the Houthis from the rebel-held capital Sanaa
8,750 people have been killed since Saudi Arabia and its allies joined the government's fight against the rebels
Saudi-led coalition keeps up air attacks in Yemen
Foreign Office says Pakistan stands with Riyadh in event of any threat
It is the second Houthi missile attack on Riyadh in the past two months
Incidents verified by the UN include seven air strikes that hit a prison in the Shaub district of Sanaa
Three further strikes damaged two other prison buildings and the perimeter wall
'What we need is a political solution'
Tensions have soared in the capital following the killing of ex-president Ali Abdullah Saleh
Saudi Arabia imposed blockade on Yemen's ports after a Huthi missile was fired toward Riyadh airport on November 4