Two U.S. soldiers were killed in central Iraq, the first military service members killed in 2011 due to an insurgents' attack in the country, the U.S. military said on Monday. The two soldiers were killed on Sunday night as the result of one attack, a military statement said without giving further details about the incident. The latest deaths are the first for U.S. soldiers to be killed in Iraq in 2011, bringing the number of U.S. soldiers killed in the country to about 4,430, since the breakout of the U.S.-led war on Iraq in 2003, according to media account based on Pentagon figures. In 2010, up to 60 U.S. soldiers were killed in the country. In mid 2010, U.S. troops in Iraq had been reduced to below 50, 000 soldiers. Washington said that the remaining troops will remain in Iraq to conduct support and training missions. U.S. military forces are to pull out completely from Iraq by the end of 2011 according to the security pact signed late in 2008 between Baghdad and Washington.