A man has been arrested in Watford town centre on suspicion of being in possession of cannabis.

Police descended on a churchyard off High Street at around 12.45pm following reports of a man with cannabis bags.

One man was arrested and is in police custody.

Witness George O'Dell saw a police car and police transporter.

He said: "I saw three officers run out from the carpark at the back of NatWest.

"They arrested a man.

"I asked an officer what happened but he said he couldn't comment on the situation."