Leaflets calling for the killing of a sect of Muslims have been found in a south London mosque, days after the Muslim Council of Britain issued a statement saying Muslims should not be forced to accept Ahmadis.
Flyers saying Ahmadis should face death if they refuse to convert to mainstream Islam were displayed in Stockwell Green mosque, the BBC reported.
The broadcaster said the leaflet was authored by an ex-head of Khatme Nabuwwat, a group which lists the mosque as its "overseas office".
The Metropolitan Police are yet to state whether or not they will investigate the matter.
A mosque trustee was reported as saying he had never seen the leaflets and suggested they were fakes or left there maliciously. However, on Friday it was reported that similar leaflets were being distributed in universities, mosques and shopping centres across London.
Police are yet to respond to a request for comment on the leaflets which say those who refuse to convert to mainstream Islam within three days should face a "capital sentence" - or death penalty.
On Thursday the Huffington Post UK revealed how tensions had been reignited between Muslims and the Ahmadiyya community following the murder of Asad Shah in Glasgow on March 24.
The Ahmadi shopkeeper was killed after wishing Christians a happy Easter and the man accused of his murder later issued a statement saying "if I had not done this others would".
The Muslim Council of Britain (MCB) issued a statement last week saying it wanted to clarify its position on Ahmadis, and that Muslims should not be “forced” to regard them as belonging to their religion.
A spokesperson for the Ahmadiyya Muslim Community UK responded by saying there were “a few positives” in MCB’s statement but criticised the timing of it given an “Ahmadiyya person had just been killed for his faith”.
Ahmadis believe that another prophet, Mirza Ghulam Ahmad, came after Mohammad, which some Muslims argue puts them out of the fold of Islam.
Minority communities in Pakistan have been targeted in sectarian violence, and some fear that could spread to the UK, encouraged by groups like the Islamic missionary group Khatme Nabuwwat, and others.
Khatme Nabuwwat believes Ahmadis are apostates.
The constitution of Pakistan bans members of the sect from referring to themselves as Muslims.
The leaflets, authored by Yusuf Ludhianvi and written in English, were found arranged in piles on a desk next to a shoe-rack, the usual place to display literature in mosques, the BBC reported.
Documents from the Charity Commission show Khatme Nabuwwat lists Stockwell mosque as its office, according to the Charity Commission. The group is also listed an an affiliate of the MCB.
Four trustees of the charity listed in the documents manage the mosque, the BBC reported, while two of the current owners of the mosque run centres affiliated to that group elsewhere in the UK.
Stockwell Green mosque was first accused of helping to promote acts of terror and hate in Pakistan in 2011.
At the time, mosque trustee Toaha Qureshi issued a vehement denial. When the BBC asked him about the leaflets he said the only link between Khatme Nabuwwat and the mosque was that the group sometimes offered "some guidance or literature" on particular issues.
Reaction to the leaflets has seen the mosque widely condemned.
One twitter user wrote: "UK Mosque handing out leaflets requesting Ahmadi Muslims are murdered. Equivalent of Church Of England handing out 'kill Catholic' leaflets.