The Muslim Council of Britain has formally asked the UK's human rights watchdog to investigate accusations of Islamophobia in the Conservative Party.
In a letter to the Equalities and Human Rights Commission, the MCB said a problem "runs deep into the party".
The EHRC said in response that it was considering complaints about the party in line with its "usual processes".
In March, party deputy chairman James Cleverly insisted "immediate action" was taken after any racism claims.
The MCB is an umbrella organisation of various UK Muslim bodies, including mosques, schools, and charitable associations. It has called repeatedly for an independent investigation into discrimination claims.
Now, in its letter filing a formal complaint to the EHRC, it accused the Conservatives of not taking action against Islamophobia shown by Tory MPs, and tolerating discrimination towards party members. [BBC] Read more
