Waterside Neighbourhood Policing Team officers seized suspected drugs and made an arrest during a search of a property in the city at the weekend.
Suspected Class A, B and C drugs were seized along with drug-related paraphernalia during a search of a property in the Dungiven Road area of the Waterside on Saturday 27th January.
A man, aged 35 years old, was arrested on suspicion of a number of drug-related offences, including Possession of a Class A controlled drug, Possession of a Class B controlled drug, Possession of a Class C controlled drug, Possession of a Class B controlled drug with intent to supply and Being Concerned in the supply of a Class B controlled drug.
He was subsequently released on bail to allow for further police enquiries.
A Police Service of Northern Ireland spokesperson said: "As enquiries continue, we want to take this opportunity to appeal to anyone with information, or concerns about drugs in their area, to call us on 101.
"It might seem insignificant, but report this information to us and we will investigate it. It could make all the difference."
Information can be provided by calling police on 101, or make a report online via www.psni.police.uk/report or, call Crimestoppers anonymously on 0800 555 111.
Subscribe or register today to discover more from DonegalLive.ie
Buy the e-paper of the Donegal Democrat, Donegal People's Press, Donegal Post and Inish Times here for instant access to Donegal's premier news titles.
Keep up with the latest news from Donegal with our daily newsletter featuring the most important stories of the day delivered to your inbox every evening at 5pm.