Islamic State message to America: 'we will drown all of you in blood'

(Reuters) - The Islamic State militant group that has seized large parts of Iraq and drawn the first American air strikes since the end of the occupation in 2011 has warned the United States it will attack Americans "in any place" if the raids hit its militants.

The video, which shows a photograph of an American who was beheaded during the U.S. occupation of Iraq and victims of snipers, featured a statement which said in English "we will drown all of you in blood".

U.S. airstrikes on Kurdish forces in northern Iraq have helped the fighters take back some territory captured by Islamic State militants, who have threatened to march on Baghdad.