Four people arrested on Tuesday (September 17) as part of a national investigation into high-value museum thefts have been bailed.
Two men, aged 37 and 30, and two 17-year-old boys, who were all arrested on suspicion of conspiracy to burgle, have been bailed until January.
The investigation is in connection with six crimes over a four-month period at museums and auction houses across England.
Chinese artefacts and rhinoceros horn were targeted in six incidents - two thefts and an attempted theft from Durham University Oriental Museum and further incidents at Gorringes Auction House in East Sussex, Norwich Castle Museum in Norfolk and the Fitzwilliam Museum in Cambridge.
While much of the property has previously been recovered, several high-value items are still missing.
Tuesday’s arrests are linked to the arrest of 20 people last week across England and Northern Ireland. They have also been bailed until January.
Hundreds of officers from 26 police forces and the Serious Organised Crime Agency (SOCA) are involved in the investigation.
The Association of Chief Police Officers (ACPO) has set up a working group to crack down on the emerging issue of heritage crime. The group brings together police officers, English Heritage and other partners in the arts and museum sector to share intelligence and crime prevention advice.
Anyone with any information should call Crimestoppers, anonymously, on 0800-555111.