It follows the revelations yesterday that RTÉ presenter Ryan Tubridy was paid €345,000 above his annual published salary
RTÉ Director General Dee Forbes was suspended from her employment by the RTÉ Board on Wednesday.
In a statement, the board said that there are "processes ongoing and RTÉ must be mindful of its legal responsibilities and the rights of individuals.
"RTÉ will not be commenting further on this issue at this time," the statement added.