Friendly Fire ?

In Baghdad, U.S. forces fired an artillery barrage in southern Baghdad early today (Sunday), rocking the capital with loud explosions.

The size and the pattern of the explosions, which began after 9 a.m. and lasted for at least 15 minutes, suggested they were directed at Sunni militant neighborhoods along the city's southern rim. Such blasts have been heard in the evenings but are rare at that time of day.

In a brief statement to The Associated Press, the U.S. military said it fired the artillery from a forward operating base near Iraq's Rasheed military base southeast of Baghdad, but provided no other details.