Donald Trump, the US president-elect, unleashed a storm of angry tweets on Sunday after Hillary Clinton's campaign said it would join with Jill Stein, the Green Party candidate, in trying to secure recounts in key states.

Mr Trump accused Mrs Clinton, his Democratic rival for the presidency, of hypocrisy and called the recount push a "scam".

Meanwhile, a senior Trump aide warned that Mr Trump had not ruled out launching a criminal probe into the former secretary of state over her email scandal.

Wisconsin has already begun a recount and Pennsylvania and Michigan may soon follow after Dr Stein raised more than $6 million (£4.8 million) to fund the new tallies.