Published: Aug 28, 2010 9:28 PM EDT
Updated: Aug 28, 2010 6:28 PM EDT

KABUL, Afghanistan (AP) - U.S. and Afghan troops have repelled a pair of attacks by insurgents wearing U.S. Army uniforms and suicide vests.
      
The pre-dawn assaults targeted two NATO bases near the Pakistani border. One of them is where seven CIA employees died in a suicide attack last year. NATO and Afghan police say dozens of insurgents stormed Forward Operating Base Salerno and nearby Camp Chapman with mortars, rocket-propelled grenades and automatic weapons.

NATO says more than 20 attackers were killed and five captured. It also says four U.S. troops were hurt. The Afghan Defense Ministry says two Afghan soldiers were killed and three wounded.

The U.S. military says three U.S. service members were killed elsewhere in Afghanistan today, two in a bombing in the south and one in fighting in the east.

Also today, a candidate running for a seat in parliament was fatally shot on his way to a mosque in northwestern Afghanistan.
      
And the Health Ministry said 48 pupils and teachers at a high school were rushed to hospitals today after falling ill with breathing problems and nausea.