Police say they will continue to search day and night for the missing baby of an aristocrat's daughter, Constance Marten and her boyfriend Mark Gordon, and say there is a chance the child "has come to serious harm".
Marten and Gordon remain in custody after being put under arrest on suspicion of gross negligence manslaughter, and detectives have since sought a further 36 hours to continue questioning them.
In an update on the inquiry, officers said they were continuing to search an area of 90 square miles. Teams supported by helicopters and sniffer dogs will be continuing the operation throughout the days and nights ahead.
