A think tank reports that white British children are being outperformed by their ethnic minority classmates.
The Institute for Public Policy Research said that figures obtained under a Freedom of Information Act request shows that the percentage of children classed as white British or English gaining five A* to C grades at GCSE is below the national average.
Conversely, the data reveals that nine minority groups including Bangladeshi, Ghanaian, Indian, Nigerian, Sierra Leonean and Vietnamese are attaining above average grades.
The figures also highlight that some immigrant groups including including Portuguese, Congolese and Yemeni school pupils, are under-achieving, something IPPR spokeswoman Jill Rutter said was proof some migrant communities are still being 'left behind'.
"Many children of migrants perform very well in school – London has the highest proportion of migrant children in its schools," she told the Guardian.
"Secondary schools in London have performed better and improved at a faster rate over the last 10 years than elsewhere in the country. But some groups are still being left behind."
The IPPR claims this was due to the government neglecting integration in favour of focusing on key migration targets.
"The question of integration, what happens when migrants actually arrive, has been neglected by policymakers," Ms Rutter said.
"The government has so far failed to set out the kind of integration policies that an increasingly diverse UK needs, and has instead focused on its net migration target."