Uriel was a planet which was destroyed by the Supress.
The Tenth Doctor was puzzled as to why the TARDIS took him and Heather McCrimmon to the doomed planet. Once there the Doctor discovered a memory collective, a galactic terraforming computer which rebuilt destroyed planets. He was forced to destroy the machine - and the planet when the Supress attacked it. However, he managed to save the population. (COMIC: The Memory Collective)