Ms Cooper accused the leader of Britain's main ally in the Middle East of letting children starve in an 'unbearable humanitarian catastrophe' because he 'chooses to escalate war and hold back aid'.

The foreign secretary also warned the prospect of a two-state solution may ‘disappear beneath the rubble’

Ms Cooper accused the leader of Britain's main ally in the Middle East of letting children starve in an 'unbearable humanitarian catastrophe' because he 'chooses to escalate war…