Three people have been injured when a remote-controlled bomb targeted a polio team in northwestern Pakistan.
Officials said the blast occurred in Dabara area of Bajaur tribal district on October 22.
The injured included two members of Levies paramilitary force and a driver.
The Taliban claimed responsibility for the attack, which came a day after the militants renewed threats against polio immunization teams.
Pakistan is one of only three countries where polio is endemic, but Taliban militants have attacked vaccination teams, accusing them of acting as spies for the United States.
Earlier this month, health authorities in Pakistan said the total number of new polio cases exceeded 200 -- the worst year for the crippling disease in the country since 2001.