Police have discovered six suspected stolen cars and a mass of Class A drugs in an industrial lockup near Wicker, Sheffield.
A warrant was issued after the police received information about organised crime in the area.
Sheffield Proactive CID forced their way into the lockup, sawing their way in through the metal shutters where they found the illegal evidence.
Detective Constable Mike Jenkins said: “As well as a significant quantity of drugs, we also recovered cash which was hidden away in the premises.
“The vehicles we recovered are all believed to have been stolen in incidents across the north of England so this is a really good result for our team and the public.
“We are carrying out these types of raids on addresses across the city every week, based on intelligence and information coming from our communities. I hope that people see this and realise that working with us does make a difference.
“Whilst no-one was at the premises at the time, we are now carrying out significant enquiries to identify a number of people we want to speak to.
“Organised crime has an impact on all of us, we are committed to disrupting the activity of criminals in this city.”
This action comes a few weeks after South Yorkshire Police issued warnings about young people being coerced into organised crime groups in Doncaster.
Detective Inspector Steve Smith said in February: “Nationally, gangs are using coercion, threats of violence or physical harm to force youngsters to carry out illegal activities on their behalf.
“You may have heard this referred to as county lines, or child criminal exploitation.
“These young people may feel like they’re in control, but in reality they’re not. Adults who know the risks involved continue to put young lives in jeopardy to further their criminal enterprises, and we must break this cycle.
“Let’s be very clear: organised crime groups engage in child abuse, that’s what child criminal exploitation is. It is abuse of our young people and as a community, we must work together to protect our most vulnerable from this risk.”