'Extremists' preaching to UK student societies
An anti-extremist group claims preachers it describes as radical Islamists have spoken at 180 events at 60 universities in the past year.
Student Rights also said a quarter of the student union society events it scrutinised promoted separate seating for men and women.
The group said some universities failed to uphold gender equality rules.
UK universities say they work closely with student bodies to balance freedom of speech and upholding the law.
But Students Rights claims a new generation of "extremist" speakers are touring campuses to spread their version of Islam.
It defined these as anyone who had made racist or intolerant comments, including incitement to violence or encouraging individuals to look at YouTube clips of terrorist activity.
And it pointed to what it said was an increasingly worrying trend of gender segregation at student Islamic Society events.'Deeply disturbing'
It highlighted 277 events promoted in UK and Irish universities where segregation was alluded to, either directly or through policies stated elsewhere. And 180 of these were on UK campuses.
Six of the events were subsequently cancelled, and two institutions, UCL and the University of Leicester, have since announced investigations into the segregated meetings.
Director of the self-styled campus watchdog Raheem Kassam said: "What we have shown in this report is that gender segregation and discrimination on UK university campuses is not simply an increasing trend, but one that is growing despite universities being aware of the incidents.
"This is a deeply disturbing revelation, as campuses across the country are supposed to be committed to ensuring that students are not discriminated against, be it on the grounds of race, religion, sexuality, gender or otherwise."
He added that university authorities were failing to address these trends.
He said with many of these speakers' views being well-documented, "a little Google search about what these guys are speaking about would not hurt anybody".'Draw the line'
The report urged institutions to communicate repeatedly during the academic year the necessity for student bodies to meet equality and diversity policies.
But Universities UK chief executive Nicola Dandridge said: "Universities are places of critical thinking and vigorous debate, where ideas can be challenged and explored openly. Institutions have a legal obligation to promote free speech, and that may involve allowing controversial, indeed sometimes offensive, opinions to be expressed.
"Where universities can and do draw the line is in preventing speakers who break the law. When illegal behaviour is identified, there is good liaison with the police and security services.
"Universities are gaining more and more experience in handling these issues and have developed guidelines in relation to inviting external speakers. Universities UK issued guidance to all universities on the subject in 2011."
A spokesman for the Department for Business, Innovation and Skills said it did not intervene or set guidelines on segregation or extremist teachings on campus.
A Home Affairs Select Committee inquiry last year concluded that while all universities had to be aware of the issue, they found that the focus on universities had itself been disproportionate.
NUS Vice-President for welfare Pete Mercer said he would welcome an open and balanced discussion about gender issues and religion but said it was important that contributions are not hysterical.
"We should note that we're aware of no complaints made by students to universities or students' unions about gender segregation.
"NUS has a long history of supporting women's self-organisation and indeed we've organised an event for Muslim women aimed at empowering them to take leadership roles on campus and in their community. Unfortunately this report appears to conflate events organised for women to meet separately with those where genders are forced to sit separately.
"When events are open to the general public or student population forced segregation is entirely unacceptable, however where the event is closed and all those present have agreed to segregate, they should have the freedom to make that choice.
"A witch-hunt which makes sweeping judgments about student Islamic societies without knowing the details denies the women involved the very equality it claims to wish for them."