Home Secretary Theresa May has denied Labour allegations that she broke the Ministerial Code by authorising the publication of a private letter to Michael Gove about alleged extremism in some Birmingham schools.
ITV News understands that just two of the 21 Birmingham city schools inspected by Ofsted are expected to keep their "Good" or "Outstanding" ratings, with the rest told they must improve.
The reports are due to be published next week.
More: Ofsted report to criticise school over 'Islamist plot'
The leaking, from her department, of a letter to Michael Gove, raises serious questions for the Home Secretary to answer.
One school was praised by Ofsted for using money from the pupil premium to pay for a number of cultural trips to Saudi Arabia.
Six Birmingham schools will be rated 'inadequate' and several more downgraded. Council officials have been criticised for failing to act.