Two men have been arresteed in London by detectives investigating the theft of Chinese artefacts form the Fitzwilliam Museum in Cambridge.
Thieves stole 18 artefacts believed to be worth more than £10million on Friday April 13.
The burglary featured on last night's (May 1) BBC Crimewatch programme, prompting more than 10 calls by members of the public with information.
Detective Chief Inspector Jim McCrorie, who appealed for information on the programme, said:
– Detective Chief Inspector Jim McCrorie
"There was a significant response to the appeal but it is going to take time to work through inquiries.
"We are still keen to hear from anyone who has information about the burglary or the four men we are keen to trace in connection to the theft."
Police are keen to trace a white VW caddy van believed to have been used by the offenders.
The van was seen in Grove Lane on April 13 at around 7.30pm. It is believed the van was stolen at 8.30am on April 7 from Ellesmere Street in the Tower Hamlets area of London.
CCTV footage of four men arriving at the Fitzwilliam museum.
A dedicated line (land line charges) - 01480 428066 - is available from 8am until 8pm, but outside of these hours anyone with information should phone 101.