(CNN) -- The bodies of five kidnapped parliamentary campaign workers were found Sunday in a remote district of Herat province in western Afghanistan, said Naqibullah Arwin, spokesman for the provincial governor.
Arwin said the workers were campaigning for Fawzia Gelani, a female candidate. The workers drove to the area three days ago when a group of insurgents kidnapped and later shot them dead, he said.
A fellow candidate, Abdul Manan, was assassinated Sunday in the same province. Manan was shot in the city of Shindand by a man who approached him on a motorcycle, the NATO's International Security Assistance Force (ISAF) announced.
He died en route to a hospital, ISAF said in a statement.
The election to select members of the Afghan parliament -- the Wolesi Jirga -- is set for September 18. The election had been slated for May, but was postponed due to security concerns and other issues.