Schools minister David Laws has told MPs of his concerns over exam results for disadvantaged pupils in Doncaster.
He told MPs he had written to Doncaster Council about the issue after shadow education secretary Lucy Powell asked which local authorities he had been in touch with over the problem.
He confirmed Doncaster was one of 87 councils he had told of his concerns within their areas, asking them to support those schools’ improvement.
Doncaster Council confirmed it had received a letter from Mr Laws - and said the concerns had been over one particular school in the borough, Mexborough Montagu Primary.
Jo Moxon, Assistant Director for Education, said: “Since the letter from the minister, Mexborough Montagu school has had a change of leadership and has become an academy.
“A review of support for pupils with premium funding has taken place. Test results have improved this year and early indications are that progress for children receiving Pupil Premium is better than last year.”
Montagu was rated ‘inadequate’ in three out of four categories by Ofsted in 2013, with teaching, pupil achievement and school leadership all criticised.
A report in May said it was making progress.