Home Secretary Theresa May’s special adviser has resigned in a row between two prominent government ministers over claims that Islamists took control of some schools in Birmingham.
Fiona Cunningham quit on Saturday night after Prime Minister David Cameron received the results of a civil service review into the dispute between May and Education Secretary Michael Gove.
Gove also issued an apology over the affair, a Downing Street statement said.
The row emerged last week when The Times published claims that Gove believed the Home Office failed to act early enough over so-called “Trojan Horse” allegations that hardline Muslims had sought to take over schools.
A letter from May to Gove accusing his department of failing to take action on the subject as far back as 2010 was then made public.
Education watchdog Ofsted will on Monday publish its reports on 21 schools in Birmingham which are at the centre of the claims.
Gove is also set to make a statement to the House of Commons on the situation.