In eastern Afghanistan a roadside bomb has killed at least eight civilians. Officials in Nangarhar province say those killed, including a tribal elder, were in a vehicle hit while being driven along a dry river bed. There's been no claim of responsibility. The Afghan interior ministry says a similar bombing has killed four Afghans, including a child, in the Khakriz district of Kandahar, a southern Taliban stronghold. The ministry also said police and NATO-led forces had killed 26 insurgents in Ghazni province. South Korea, meanwhile, says it will send a contingent of police and troops to Afghanistan next year to guard a planned team of about 135 South Korean civilian reconstruction workers. South Korea pull 210 military engineers and medics from Afghanistan in 2007 after the Taliban murdered two Korean church volunteers. Seoul's announcement precedes a visit to South Korea next month by US President Barack Obama.