Officials in Afghanistan's northern Konduz province say a suicide bomber blew himself up inside a government building, killing the district governor and two other people.
Five other people were reported wounded in the blast.
A provincial governor spokesman (Mabobullah Sayedi) said the bomber was able to enter the Chardarah chief's office by pretending to look for work.
The blast killed district chief Abdul Wahid Omarkhail, who had served for several years as governor of Chardarah, along with a bodyguard and a village elder.
compiled from agency reports