RTÉ paid Ryan Tubridy 345,000 euro more than declared from 2017 to 2022.

The state broadcaster has described it as a "serious breach of trust".

A review was carried out by Grant Thornton into RTÉ's accounts - which was discussed by the board of the broadcaster on Monday.

It found payments totaling 345,000 euro were paid to Ryan Tubridy between 2017 and 2022 - over what was made public.

The review found RTE had guaranteed additional payments to the former Late Late Show host through commercial partners - in exchange for appearances.

Figures released by the broadcaster show Tubridy was paid in excess of 500,000 euro between 2017 and 2022 - despite his salary being declared below half a million.

Ryan Tubridy stepped down as host of the Late Late Show earlier this year.

The RTE board has apologised