Two men were arrested after a flat which housed a former cannabis farm was broken into.
Police raided the property in central Stockton on Saturday.
In total, 469 cannabis plants were found in multiple rooms at the property on the corner of Yarm Street and Yarm Lane.
Police vans were parked outside The Jokers pub for most of the day, while electrical engineers had to dig up the road to disconnect a dangerous electricity supply.
Officers believe the drugs had a street value of between £130,000 and £390,000.
Cleveland Police were called back to the premises on Thursday after reports the same building had been broken into.
Two men aged 39 and 28 were arrested in connection with the incident but were released with no further action.
A spokesperson for Cleveland Police said: “We would like to make it clear that there are no drugs or valuable items remaining in the address and the property has been boarded up again whilst enquiries continue.”
Stockton Neighbourhood Police Team officers had posted a video inside the property to social media on Saturday morning.
In it, a long corridor was filled with large black plastic bags, and three rooms off the hallway are covered with sheeting.
Inside, curtained off rooms are…