10 September 2014 Last updated at 14:23
Seven people have been arrested following police raids involving 250 officers across south-east England.
Police believe young children from south-east London are being used by gangs to transport Class A drugs to Hampshire and Kent.
Searches were carried out in Lewisham, Haringey, Croydon, Canterbury, Folkestone, Kent and Portsmouth.
The Met Police said the raids, carried out at 05:00 BST, were a “clear message” to criminals.
A large quantity of of crack cocaine and £1,500 in cash was also seized from an address in Canterbury.
The seven have been arrested on suspicion of conspiracy to supply class A drugs, inciting supply of class A drugs, child trafficking and money laundering.
http://www.bbc.com/news/uk-england-29143366