Police carried out early morning raids in York, seizing drugs and weapons.
Officers executed drugs warrants at two properties on Lowther Terrace on Saturday, acting on tip-offs from the public.
York Outer Neighbourhood Policing Team and the Operational Support Unit teamed up to carry out the raids.
A number of large holdalls containing what is believed to be cannabis were found and seized.
Several offensive weapons were also recovered.
A 24-year-old man, 42-year-old man and 39-year-old woman were arrested on suspicion of possessing and supplying class B drugs and possessing an offensive weapon in a private place.
They were interviewed and have since been released under investigation.
Inspector Lee Pointon from the Neighbourhood Policing Team said: “In total we estimate that around 30kg of what is suspected to be cannabis was seized, this is a significant find for the team.
“Members of the public should be reassured that we will take all information provided to us seriously and where appropriate take action.”