World | Afghanistan war 4 American Troops Killed in Afghan Blast Deaths bring US death toll to 25 for the month By Newser Editors and Wire Services Posted Oct 16, 2009 5:14 AM CDT Copied US Marines walk together inside Camp Leatherneck, in Helmand province, southern Afghanistan, Friday, Oct. 9, 2009. (AP Photo/Brennan Linsley) Four American service members were killed in a bombing in southern Afghanistan yesterday. Two were killed instantly in the blast and two others suffered fatal injuries in the same explosion. Details of the attack, including its location, haven't been released. The deaths bring to 25 the number of American troops killed in Afghanistan this month. Read These Next Murdered couple died "protecting their little girls." Delta pilot arrested moments after landing plane. Gunman kills police officer at Manhattan skyscraper. Manhattan shooter's note reportedly referenced CTE. Report an error