A rocket slammed into an Iraqi base where
American troops are stationed in the remote province of Kirkuk, Iraq's military and a US security source told AFP on Thursday night.
It was the latest in a string of nearly 20 rocket attacks since late October on US troops stationed across the country as well as on the American embassy in Baghdad.
According to three separate Iraqi security sources, the Katyusha rocket hit an open area on the K1 base at around 8:45pm local time (1745 GMT).