Police have urged Crawley people to ensure their homes are secure after a series of burglaries were linked.
Detectives believe 11 break-ins across the town have been committed by the same people over the last eight weeks.
Gold jewellery has been stolen along with cash and electrical items.
Detective Inspector Dave Wardley-Wilkins said: “We believe the thieves are specifically looking for gold jewellery that they know they can sell. In some cases they have sorted their way through drawers and discarded pieces they believed were less valuable while taking larger gold items.
“I would urge residents to make sure their homes are secure whenever they leave them, even if they only plan to be away briefly. A few minutes may be all the time the burglars need.
“I also need the public’s help to identify anyone who may have been acting suspiciously near the burgled homes in the minutes, hours or even days before the break-ins. If you have seen anything at all, please contact us.”
Officers are particularly interested to speak to anyone who may have seen people acting suspiciously in high performance cars parked in residential roads where the burglaries happened.
A white Ford Focus ST, similar to the one pictured, has been seen close to the scene of some of the crimes but the gang could be using a number of vehicles.
Sussex Police launched Operation Magpie to tackle burglary across the county.
The first break-in happened on March 4 between 6pm and 8.20pm in Brantridge Road, Furnace Green.
Among the items stolen were gold necklaces, gold and diamond rings, a gold cross, gold earrings and a turquoise and pearl Victorian bangle.
On March 6 burglars entered a home in Parkway, Pound Hill, and took gold jewellery including necklaces, earrings and bracelets.
During a burglary in Deerswood Road, West Green, on March 16 gold, silver and costume jewellery was stolen.
Break-ins at homes in Spring Plat, Pound Hill, and Woodfield Road, Northgate, on March 24 involved the thieves escaping with gold jewellery.,
Between 4.30pm and 9.30pm on March 28 intruders broke into a home in London Road, Northgate. They stole cash, electrical equipment and jewellery.
On April 10 the thieves got into a home in Ewhurst Close, West Green, between 5.30pm and 9.50pm. They took cash and jewellery before escaping.
Two homes were broken into between 9am and 2.45pm on April 13 - one in Early Commons, Three Bridges, and one in Crabtree, West Green. Jewellery was again stolen.
A safe containing personal documents and two watches was stolen during a burglary in Tinsley Lane, Three Bridges, that happened between 8am and 3pm on April 17 and a burglary in Hermits Road, Three Bridges, between 8.30am and 3pm on April 21 saw gold jewellery being stolen.
If you have any information about burglaries or shops selling stolen goods, call 101 or email firstname.lastname@example.org. For crime prevention advice visit www.sussex.police.uk.