The duo, a man and a woman, were seen on CCTV stealing a wheelbarrow from a flatbed van.
The theft happened on Vine Street at about 9.30pm on Wednesday March 24, when the van was parked up.
Officers are asking that anyone who recognises either of the people pictured or has information, to come forward.
If you have information email [email protected] or call 101, quoting reference number 12210084160 when passing on information.
You can also pass information anonymously to Crimestoppers via their website: crimestoppers-uk.org/give-information