A female Afghan politician expelled from parliament for alleged voter fraud is vowing to continue a more than week-long hunger strike until she is reinstated.

Sunday is the eighth day of Simeen Barakzai's hunger strike in a protest tent outside parliament in the capital, Kabul. A doctor told the French news agency that Barakzai's health was worsening to a critical condition.

Afghanistan's Independent Election Commission expelled her and eight other lawmakers from the national assembly in August to try to resolve long-running allegations of voter fraud against some winners of a parliamentary vote in September 2010. Some lawmakers who boycotted parliament to protest the expulsions returned to their seats on Saturday.

In other developments, the NATO alliance said Sunday two of its service members were killed in an insurgent attack a day earlier in southern Afghanistan. It gave no other details.

NATO also says a combined Afghan and coalition force killed one Taliban militant and captured several others including an insurgent leader during an operation Saturday into Sunday in the eastern province of Nangarhar. It says the captured insurgent leader helped to bring explosives and weapons from Pakistan into Afghanistan.