Lancashire Police are searching for missing sex offender Francis Doherty.
64-year-old Doherty, formerly of Rawtenstall, was jailed for three years in 2005 for sexual assault on a boy under 13.
He is now wanted for breach of notification requirements as well as for recall to prison.
Doherty is known to regularly visit Burnley, Accrington, Rossendale and Manchester. He was sighted in Manchester earlier this month and may still be in the city centre.
Detective Sgt Steve Munro, of the East Sex Offender Management Unit, said: “Doherty is wanted for a breach of the notification requirements and for recall to prison.
I would appeal to anyone who sees him or knows where he might be to get in touch with us.”
Anyone with information should call police on 101 quoting log 0430 of October 27.