Pakistan police say a roadside bomb attack on a prison van has wounded at least 10 policemen in the restive northwest.
Officials say Saturday's explosion was near a jail in the town of Timergarah in Lower Dir district.
No group has claimed responsibility for the attack.
Elsewhere in Pakistan, at least six people have been wounded by an explosion in southwestern Pakistan.
Police say the blast went off in a bakery Saturday in Sibbi in the province of Baluchistan.
Some information for this report was provided by AFP and Reuters.