BREAKING NEWS: Five American troops killed in Iraq By Daily Mail Reporter Last updated at 12:08 PM on 6th June 2011 Death toll of U.S. service members reaches 4,459 Latest incident is single largest loss of life in two years Five American troops were killed today in Iraq - the single largest loss of life for the American military in Iraq in the past two years. The military would only confirm in a brief statement that the five were had died, giving no additional details about where the incident occurred or how they were killed. The incident was under investigation and the names of the deceased were being withheld pending notification of the next of kin, the military said. Biggest loss of life in two years: Five U.S. soldiers have been killed in Iraq (file photo) The deaths raised to 4,459 the number of American service members who have died in Iraq, according to the latest count. The U.S. currently has roughly 46,000 U.S. troops in Iraq, down from a one-time high of roughly 170,000. The American military officially ended its combat operations in Iraq last August and reduced its forces to less than 50,000 troops. The remaining forces are focused on training and assisting Iraqi security personnel, and are not supposed to be actively engaged in combat operations. However, American forces still come under almost daily attack by rockets and mortars in their bases and get shot at and targeted by roadside bombs when they move outside of their bases. Today's incident was the single largest loss of life for the U.S. military since May 2009, when five U.S. troops were killed in Baghdad during a non-combat related incident. In April 2009, six U.S. troops died - five in combat in the northern city of Mosul and one north of Baghdad in a non-combat related incident.