Swansea University has suspended its vice-chancellor, officials have confirmed.
Professor Richard B Davies, who has held the role at the university since 2003, stood aside for an internal investigation to be carried out.
The dean of the school of management, Professor Marc Clement, has also been suspended.
Prof Davies, who was brought up in west Wales, studied engineering at Cambridge before receiving a PhD from the University of Bristol.
Llanelli-born Prof Clement has held several senior academic positions and was appointed dean of the school of management in 2015.
A university spokeswoman said: “We can confirm that the Vice-Chancellor Professor Richard B Davies and Professor Marc Clement have been suspended, pending the outcome of on an internal investigation.
“We are not making any further comment at this stage.”