Harvey Willets is not considered dangerous

Gwent Police said Harvey Willets, 29, who was jailed for drugs offences, was last seen at about 1830 BST on Sunday.

He is white, 6ft (1.83m) tall, with shaven brown hair, blue eyes and with neck, body and finger tattoos. He is not considered to be dangerous.

In July, paedophiles John Elms and Martin Aspinall were on the run for two days.

Gwent Police said they were liaising with neighbouring South Wales Police as officers believed Willets could be in that area.

A spokeswoman for Gwent Police said: "He is not considered a risk to the public.

"However, police are encouraging members of the public, if they do see him, not to approach him but to contact police.

"He is not serving a life sentence and is not a sex offender. He is serving his sentence for drugs offences."

A day after Elms and Aspinall absconded, Marc Andrew Barnett, 26, who was serving three years and six months for burglary with intent to steal, also left the open prison.

He was found near Caerleon the following day.

Later, Phillip Parfitt, 44, who was convicted of grievous bodily harm, failed to return from home leave. He was arrested the following week.

Also in August, the Home Office said a 33-year-old inmate - sentenced for dishonesty and driving offences - had failed to return while out on licence.