A government health worker and his driver were killed Sunday in a roadside bomb blast in northern Afghanistan, officials said.
Dr. Ahmad Jawed Karim and his driver hit an explosive as they were driving in Takhar provinc's Dahana Sangi district, the health ministry said in a statement.
In the south, two international service members were killed _ one in an insurgent attack and the other in a bomb blast.
NATO forces said the service members died Sunday but did not provide further detail.
NATO typically waits for national authorities to identify their dead and provide details of fatal incidents.
Seventy-eight international troops now have been killed this month.