A Swindon cannabis factory was discovered after residents alerted police to the sound of breaking glass.
Officers also found about £8,500 in cash in a car seen leaving the location.
Three men are in custody following the find in Gorse Hill in the early hours of this morning - July 28.
At about 2.30am, a police spokesperson said, officers were called to a report of a suspected burglary in progress in Omdurman Street, Gorse Hill. Residents reported hearing windows being smashed.
Officers arrived at the scene and discovered the factory, which consisted of more than 20 plants. A man was also found there but has so far refused to give any of his details to the police.He was arrested on suspicion of cultivation of cannabis and taken to custody at Gablecross police station.
At the same time, the spokesperson said, a car was seen to be attempting to leave the Omdurman Street premises. It was stopped, and a search yielded about £8,500 in cash.
A man in his 40s from Swindon was arrested on suspicion of cultivation of cannabis and taken to Gablecross.
A second vehicle then attended the scene, was followed and stopped by the police at Barnum Court. It was searched and baseball bats and mobile phones were found inside.
The driver, a man in his 30s, was arrested on suspicion of cultivation of cannabis and possession of an offensive weapon. A search of an address in Barnum Court was then conducted, and drugs paraphernalia and approximately £1,200 in cash seized.
Insp Steve Love said: “Thanks to the vigilance of members of the public who initially reported concerns regarding activity at the Omdurman Street address, officers have been able to arrest three individuals and dismantle a cannabis factory.
"The full extent of the factory is not currently known. However, there were plants growing across two rooms of the address.
“Our enquiries are ongoing today and we’d urge anyone with information to contact us on 101 and quote crime reference number 54200074315.”