Police have conducted a raid in Dewsbury after gathering intelligence on drugs and firearms offences.
Two vehicles were stopped and further searches conducted in Quarry Road in Ravensthorpe last night.
Class A drugs, cash and firearms were seized during the operation.
Four men aged 31, 28, 25, and 27 were arrested for possession of firearms and drugs offences and remain in custody.
A scene remains in place today and enquiries remain ongoing.