The leader of Britain's opposition Labour Party has vowed not to step down amid challenges to his leadership as the fallout from the UK's momentous vote to leave the European Union continues. 
Twelve senior MPs resigned from Labour leader Jeremy Corbyn's shadow cabinet on Sunday, according to UK media, after shadow foreign secretary Hilary Benn was sacked by Corbyn for reportedly plotting against his leadership in the wake of Thursday's referendum, according to the (CNN). 
"I regret there have been resignations today from my shadow cabinet," Corbyn said in a statement. "But I am not going to betray the trust of those who voted for me - or the millions of supporters across the country who need Labour to represent them." Corbyn said there would be a new shadow Cabinet within 24 hours and, if there was a new vote for the Labour leadership, he would stand as a candidate. 
Under Britain's parliamentary system, the shadow Cabinet is a senior group of opposition members of Parliament tasked with criticizing the government's policies; each is given a specific portfolio on which to act as spokesperson.

Source : QNA