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Police were stunned when they pulled over a van to find £300,000 in cash.
At about 9.20am on Tuesday, officers became suspicious of a van driving towards Ashford between Junctions 8 and 9 of the M20.
Once stopped in Ashford's Eureka Park, a quick search of the vehicle uncovered some cannabis along with a holdall stuffed with banknotes.
The driver, a 40-year-old man from Nottinghamshire, was arrested on suspicion of money laundering, possession of cannabis and driving whilst under the influence of drugs.
He has since been released on bail pending further inquiries until Friday, May 7.