Here is another article on those statues found in the Sudan. The remarkable things is their location far south of where other Kushite material has been found. The fragments make up four statues which appear to have been ritually broken.
The most important of the statues is a 1.5 ton statue of the last king of Egypt's 25th dynasty the pharaoh Taharqa. The Sudanese kings Aspelta and Senkamanisken are also represented in the group as is a fragment of a crown of an unidentified fourth statue.