Ministers hiding soaring costs of Rwanda deportation plan, says MP

Committee head says report of 15m being paid on top of 140m already spent shows total disregard' for parliamentary scrutiny

Ministers are deliberately hiding the mounting costs of the Rwanda deportation scheme from the public, the head of an influential parliamentary watchdog has told the Guardian, as insiders expect a new deal with the African country to be signed off within days.

Dame Diana Johnson, the chair of the home affairs select committee, said the government had total disregard" for parliament's rights to scrutinise the key immigration policy after a senior civil servant said that any extra costs on top of the 140m already paid to Rwanda would not be disclosed until the summer.