Chelmsford road sealed off after drug chemicals found
4 October 2013 Last updated at 12:08 BST
A road was cordoned off in Essex after drug-making chemicals were found in a house.
Chemicals from the house in North Avenue had been taken to a drug treatment clinic in New London Road in Chelmsford, where six people were later taken ill.
Police then found more chemicals, some believed to be in small bottles, at the house on Thursday.
A man has been arrested on suspicion of being involved in making drugs.