“Mysterious features” found during a survey of Sutton Hoo are to be at the centre of a fresh archaeological dig.

A grave, burial ship and treasures, thought to be related to King Rædwald - the 7th Century Anglo-Saxon ruler of East Anglia - were revealed in 1939.

Researchers said a dig in June would see if the newly-discovered features were archaeological or geological.

Angus Wainwright, a National Trust archaeologist, said the project would be “painstaking”.