Up to 20 Britons are undertaking terrorist training in Pakistan to launch attacks in Britain, a report said Thursday, citing intelligence sources.
Al-Qaeda and associated militant groups are training the young Muslims, who hold British passports, in Pakistan's tribal areas, Britain's Daily Telegraph newspaper said.
They are being trained to use firearms and explosives in order to carry out shooting sprees in Britain, intelligence sources are cited as saying in the daily paper.
"We believe there are 15 to 20 Britons in the camps," a source in Islamabad told the Telegraph, on condition of anonymity.
The report came after it emerged that Western intelligence agencies had uncovered an Al-Qaeda plot by Pakistan-based militants to attack Britain, France and Germany, according to security sources and media reports.
Militants were planning simultaneous strikes in London and cities in France and Germany, in attacks similar to those in Mumbai two years ago, British and US media reported.