The Government has reportedly been criticised for failing to manage the impact of immigration.
The criticisms have been made in a report by the Government's integration tsar Dame Louise Casey, according to The Sunday Times.
The newspaper says the report has been ready for months but its publication was delayed after Home Office officials expressed concern about its content.
According to the newspaper, the report is understood to criticise the Government for failing to get a grip on the pace of immigration and its impact on public services until too late.
It reportedly cites a lack of a strategy to integrate communities and the failure to promote and defend a programme designed to counter radicalism in communities.
The newspaper said it is understood that the report also warns that "liberal tolerance" has gone too far.
It has previously been suggested the report could warn that political correctness from council chiefs poses a threat to British laws, culture and traditions.