Pamphlets left at London's Stockwell Green Mosque threaten death to Ahmadiyya Muslims unless they convert to mainstream Sunni Islam. Opponents have accused this mosque of helping promote acts of terror and hate in Pakistan in 2011, prompting a denial from a mosque trustee.

The mosque lists itself on official United Kingdom government documents as the official "overseas office" of Khatme Nabuwwat, a Pakistani Islamist movement known for its strong anti-Ahamdi sentiment, the BBC reports. It also is listed as a member of the Muslim Brotherhood-linked Muslim Council of Britain.

Ahmadis suffer intense persecution in Pakistan and are regarded as heretics due to their belief that their founder, Mirza Ghulam Ahmed of Qadian, was a prophet after Muhammad. They also differ from Sunnis by rejecting offensive jihad and believing that military jihad no longer is applicable in the modern world. In a 1983 ruling, the sheikh of Al-Azhar, one the most highly respected authorities in Sunni Islam, declared the Ahmadis "apostates."

The English-language Khatme Nabuwwat pamphlets found at the Stockwell Green Mosque derisively refer to the Ahmadis by the epithet "Qadiani" and say they should be killed as apostates.

"Those who refuse to convert to mainstream Islam within three days should face a 'capital sentence' — or death penalty," a pamphlet cited by the BBC says.

"Khatme Nabuwwat do not inflict violence themselves, but they provide an enabling environment for a number of actors to do so," Human Rights Watch official Saroop Ijaz told the BBC.

"There are enough violent groups in Pakistan, enough radical population in Pakistan, that if accusation is made enough times and loudly enough – that is murder. Khatme Nabuwwat do this with the very clear desire of leading to that outcome."

The mosque denied placing the pamphlets in its literature rack, with a spokesman saying they may have been planted by someone with malicious intentions.

The pamphlets' discovery comes in the wake of the murder of Asad Shah, an Ahmadi, in Glasgow last month. Tanveer Ahmed of Bradford, England, said he killed Shah for disrespecting Islam and falsely claiming to be a prophet.

The MCB responded to the attack against Shah, saying that Muslims should not be forced to classify Ahmadis as Muslims if they do not wish to do so and for Muslims to "respect all people irrespective of belief or background."

The MCB statement represented the sentiments that fueled the growth of intolerance and extremism in Pakistan, an Ahmadi spokesman said in response.