Over a million pounds worth of suspected Class A drugs have been seized as part of the ongoing Operation Sabredale.
Focusing on drugs, cash and firearms, the fortnight clampdown involves teams of officers hitting addresses throughout the Bradford district.
In this latest raid, officers struck a property at Lister Court on Cunliffe Road and uncovered what is believed to be a safe house.
Several thousand pounds in cash and drugs related paraphernalia was also recovered.
Four men aged 33, 30, 23 and 21 have been arrested in connection with the Supply of Class A Drugs and remain in police custody. Enquiries currently remain ongoing.
Bradford District Chief Inspector Dan Greenwood said: “This is clearly a significant seizure and represents the impact which Operation Sabredale is continuing to have across the district.
“Our message remains the same, if you are involved in drugs or guns, you will be the target of our investigations and warrants.
“The community support we have received in the first week alone has been tremendous.
“Combined with our own intelligence, information is coming in from the public which is allowing us to flush out those involved in criminality.
“The action we are taking is a visible representation of our determination to tackle the issues which matter most to our residents.
“Together we can remove the scourge of drugs from our streets and associated crimes such as the use of firearms.”
Crimestoppers can be contacted anonymously on 0800 555 111.