Prime Minister Theresa May has fired her defence minister Gavin Williamson.
Williamson was sacked over a leak of discussions in the National Security Council about Chinese telecoms company Huawei.
In a letter, Prime Minister Therese May informed Gavin Williamson about evidence of his involvement in the leak.
Williamson has denied the charges.
May has appointed international development secretary Penny Mordaunt to succeed Williamson.
Mordaunt will be Britain’s first woman defence secretary.