Security guards were forced to throw members of a group out of a university in Yorkshire which it is claimed were harassing Muslims for not fasting.

Hizb-Ut-Tahrir has already been barred from universities by the National Union of Students and was also accused of trying to take over the students union.

Ann Cryer, Labour MP for Keighley, made the allegations in Parliament after visiting the university, which she does not want to name for fear of deterring students from applying for courses. She said: "I was told that during members of Hizb ut-Tahrir went into the canteen and were forthright in condemning young Muslims who were eating there because they should have been fasting. Eventually the university's security had to be brought in to move them on.

"When I went to the university a few weeks ago I was told that Hizb ut-Tahrir has taken over the Islamic society and was preparing to take over the students union.

"Such events are really sad because it is the hundreds of mainstream Muslims at the university who should be the guiding force in our communities."

But Dr Imran Waheed, a spokesman for Hizb ut-Tahrir, refuted claims it is trying to radicalise young British Muslims or promotes violence.

Professor Geoff Layer, Pro Vice-Chancellor of the University of Bradford, said: "We assume that Ann Cryer's comments do not relate to the University of Bradford as there have been no incidents of note during this period of Ramadan.