Pakistan's Federal Investigation Agency officials say the arrest was a joint operation by Pakistani officers and Britain's National Crime Agency last Saturday in the town of Sangla in eastern Punjab province.
The officials spoke on condition of anonymity as they were not authorized to talk to reporters. The British Embassy identified the man as Choudhry Ikhalaq Hussain, a convicted pedophile. It said Britain had worked closely with Pakistan since 2017 "to secure his arrest and extradition."
The case will now go to a Pakistani court, which is expected to approve the man's extradition to Britain.