Twelve officials of President Joe Biden's administration have resigned over the US policy on Israel and Gaza war.

In a joint statement, the officials said the United States' diplomatic cover and continuous flow of arms to Israel amounts to its undeniable complicity in the killings and forced starvation of a besieged Palestinian population in Gaza.      

They said Biden administration's actions have endangered US national security and have further destabilised the region.                               

Those who resigned include officials of White House, Interior department, two former air force department personnel and a former army officer in the Defence Intelligence Agency.