Afghanistan: Seven U.S. soldiers killed

In the southern part of Afghanistan a roadside bomb blast killed seven U.S. soldiers have been. 

Afghan officials say two simultaneous blasts in which seven U.S. soldiers were also killed two Afghan policemen.
NATO military officers killed in the beginning of the soldiers refused to disclose the nationality but a U.S. official later confirmed that the seven soldiers killed in America is concerned.

  Correspondent says that seven U.S. soldiers and at an extraordinary U.S. military casualties is huge.
In Afghanistan so far this year close to two foreign troops have been killed.