A Christian charity's attack on London Muslim mayor Sadiq Khan has provoked the ire of bishops and other church leaders.

(Reuters/Peter Nicholls) London's Mayor elect, Sadiq Khan, leaves Southwark Cathedral in London, Britain, May 7, 2016.

Earlier this month, Christian Concern published an article expressing the views of the charity's Director of Islamic Affairs Tim Dieppe on Sadiq Khan's mayoral candidacy in London. In the article, Dieppe described Khan as a devout Muslim who has well documented links with Islamic extremists.

Although the Christian Concern article acknowledges that Sadiq Khan has denied any sympathy with the radical interpretation of Islam, it mentioned that he received death threats from Muslims because of his vote for same-sex marriage.

In addition, Dieppe said the situation in London would continue to deteriorate with Khan as mayor. The Christian Concern officer cited Khan's statement in 2004 wherein he suggested the implementation of some of the "uncontroversial" parts of Islamic law in the United Kingdom's legal system. He also highlighted an incident where Khan shared a platform with five Islamic extremists.

Dieppe lamented the fact that Khan neither apologized for those things nor retracted his statements. He says Khan's past actions do not reflect his intention to promote Muslim integration into the British population. He said Khan would most likely stick with Islamic segregation and Muslims' right to uphold their Islamic cultural values.

In response to what Dieppe said, Church Army chief executive Mark Russell and five bishops and church leaders sent a letter to The Church Times expressing their anger at the Christian Concern article about Sadiq Khan. They called the article "ill-informed, dangerous, and wrong" and said the charity does not represent the Church of England's stance on the issue, Christian Today reports.

In addition, the letter said Sadiq Khan is committed to promoting inclusion and they wish him well in his new task as London's mayor. They also praised the Muslim mayor's decision to hold his signing-in ceremony at the Southwark Cathedral instead of the City Hall to show that he would work for the whole of London.