At least 48 people have been killed in a suicide bombing in northwest Pakistan. The bomber blew himself up inside a mosque during Friday prayers in the town of Jamrudh. The two-storey building was severely damaged in the blast, and other victims are said to be trapped inside. The number of dead is expected to rise.Initial reports said a police post next to the mosque had been the target after a number of anonymous threats. No-one has admitted the bombing, but militant groups opposed to America’s support for Pakistan have carried out frequent attacks in the Khyber region in the past. This is the most deadly attack in Pakistan since the bombing of the Islamabad Marriott hotel in September which killed 60 people. The government recently accepted the imposition of sharia law in the Northwestern Territory in an attempt to stem the surge of Taliban-led violence.