A man held by police in connection with the murder of an East Sussex businessman has been released without charge.

He was arrested in London on Tuesday and questioned over the killing of Dale "Ken" Harvey, of Brede, near Hastings, who was shot as he drove to work on August 18 in what police believe was a contract killing.

Gunmen rode up on a motorbike as he waited at traffic lights at Cripp's Corner, near Battle, and fired at Mr Harvey three times.

Officers had searched a stretch of water close to the home of the arrested man, 19, looking for the weapon and other evidence.