Afghan officials say insurgents have shot and killed eight day-laborers on their way to work at a U.S. base in eastern Afghanistan. Thursday\'s attack in Logar province is the latest in an intimidation campaign against Afghans working for the government or NATO forces, according to a report of the Associated Press. Provincial spokesman Din Mohammad Darwesh says the laborers were killed just after dawn as they headed to Forward Operating Base Shank, a U.S. base located near the capital of Puli Alam. Darwesh says they were day-workers and not part of the base\'s local staff. Logar deputy police chief Raeis Khan Abdul Rahimzai says the victims were in their late teens and early 20\'s. He says their driver was released.