The University of Texas at Arlington has suspended all social activity at its Greek life organizations, officials said Wednesday.

The move is due to "recent allegations and concern for the well being of our community," according to a letter to students from Lisa Nagy, UT-Arlington's vice president for student affairs. Her letter included a link where students could anonymously submit a report regarding any incident involving fraternities or sororities.

When asked what prompted the decision and for details of any ongoing investigations into potential wrongdoing related to fraternities or sororities, UT-Arlington spokesman Joe Carpenter told The Dallas Morning News in a statement that, "We are unable to comment on any specific allegations at this time. Regarding any alleged sexual assaults, we are unable to discuss any details of possible investigation in these matters."

Carpenter's statement noted that the university was committed to students' "safety and security" and that the actions stem from the culture of the fraternal community both at UT-Arlington and nationally.

Blanket suspensions of Greek activities are rare and generally a result of a major incident on a campus. For example, Murray State University in Kentucky suspended all social activities for Greek life last year following a death, two hazing incidents and several violations, according to news reports. When there are allegations of wrongdoing related to such groups, usually only the fraternity or sorority in question might face a suspension during an investigation.

The university’s 31 sororities and fraternities will not be able to host any social events, including philanthropic events, new member showcases and mixers. All chapters were directed to submit a form indicating whether any initiation activities were planned for spring semester.

Any failure to comply with the suspension will result in "enhanced adjudication and sanctions," according to Nagy's letter to students. Initiation activities that are in accordance with university and national headquarter policies may continue, but a university staff member from the Fraternity and Sorority Life Office or Student Affairs must be present.

UT-Arlington officials will assemble a task force to review the state of affairs in the school's Greek community.

"The charge of this group will be to review the current state of affairs within our fraternity and sorority community and recommend steps to effect a positive shift in our campus culture" that is consistent with the school's values, Nagy wrote.

A number of student events for spring have been canceled.

The Zeta Tau Alpha sorority, for example, had to cancel a variety show that was a philanthropy event for breast cancer education and awareness. Sorority members were having to refund audition fees, ticket purchases and other sale items.

Last year, UT-Arlington suspended two fraternities and investigated a third because of allegations related to underage drinking.