Ahmadiyya Muslim community! Its adherents, Ahmadis, consider them selves as a sect of Islam and their places of worship are also called mosques. Ahmadis differ from main stream Islam in many ways, the most important one being acceptance of Mirza Ghulam Ahmad - founder of Ahmadiyya movement - as Prophet.
But, Islam considers Prophet Mohammad to be the last prophet before the day of the Judgment; this is the first of 5 pillars of Islam: shahada (saying 'Allah is the only God and Mohammad is messenger'). Muslims say that belief of Ahmadis regarding the prophet-hood violates basic tenets of Islam thus, their sect can not be a part of Islam.
Probably in seventies, Pakistan Govt. passed a law that declared Ahmadiyya sect [3 to 4 million Ahmadis live in Pakistan] as non-Islamic. But, persecution of and violence against Ahmadis continues in Pakistan and li last 3 years it increased sharply like attacks on two Ahmadiyya mosques killing 95 people (here).
Now, pamphlets seems to be in circulation saying that Ahmadis are fit to be killed. This may not be like a open command like Allah issued in Koran in the verse 9:5: "when sacred months have passed, fight and slay the idolaters wherever you find them, sieze them, besiege them and prepare for them every ambush.....", nevertheless, it tells about degree of intolerance that can be found in Islam with respect to non-Muslims.