Five people were arrested following a raid in Maidenhead yesterday which saw £80,000 worth of drugs and a large amount of cash recovered.
They were picked up by officers from the Metropolitan Police Service's Trident Gang Crime Command, who stopped three cars in Florence Avenue shortly after 6pm.
Inside one was a holdall containing eight packages, each containing a kilogramme of the Class B controlled drug methadrone-hydrocloride.
A 'large' undisclosed amount of cash was found in the other vehicles. All three were seized by police.
The five suspects were arrested on suspicion of drug trafficking offences and taken to a Berkshire police station.
They include two men from Maidenhead, aged 41 and 45.
The others were a 48-year-old man from Worcestershire, a 23-year-old woman from Kilburn and a 51-year-old woman from Forest Gate.
More cash was found during a search of one suspect's address, along with a money counting machine.
Searches continue at the other suspects' addresses. All five remain in police custody.
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The crash, which took place at about 7am today (Thursday), involved three vehicles. One man sadly died as a result of the collision and his next of kin have been informed.