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More than 300 cannabis plants have been seized from a warehouse.
Police were called at around 6am on Wednesday to reports of a break-in at a business unit in Waldeck Road, Dartford.
Officers attended the scene where a cannabis cultivation factory was discovered inside the premises.
Following inquiries, a 48-year-old man and a 50-year-old man, both from Woolwich, were arrested and later released under investigation.
A further suspect, a 24-year-old man from London, was arrested on Thursday. He was released on bail until February, 3, as inquiries continue.