A woman from Abbots Langley was among 20 people who were arrested on suspicion of possession of class B drugs.

The 21-year-old was cuffed as part of a police operation tackling county lines gangs in Hertfordshire between Monday, October 9, and Sunday, October 15.

She was suspected to be carrying cannabis but has been released on bail while investigations continue.

A 22-year-old from Hemel Hempstead was also arrested on suspicion of possession of class B drugs, with intent to supply. He too was released on bail.

The operation was part of a national drive to disrupt and arrest those involved with county lines.

Detective Chief Inspector Mark Clawson, from Hertfordshire Constabulary’s Serious and Organised Crime Command, said: “This latest week of action is part of our continuing drive to disrupt and dismantle county lines gangs operating in the county.

“The operations involved a number of different teams across the force, working with our partners to target county lines drug dealing in Hertfordshire.”