This evening around 5:00 pm (Monday 01/11/10), witnesses described a running gun battle starting in the alley between National and Carlisle.  Two adolescent males were seen ducking behind a fence, planning their shot, then one lifted a gun and started shooting at four youths dressed in black walking toward Government Rd on National St.  Several of the youths in black pulled guns and gave chase up the alley to the youths in white.  A few minutes later the youths in black were seen at the parking lot of the Hamidi Mart being picked up by a large dark colored sedan which drove off down Government.  At approx 5:10pm the first police arrived on scene and began driving the surrounding streets.  Ten to fifteen shots were fired in total.  Police have recovered several casings of .22 calibre and 9mm.  Electrical contractors were called to repair a power line on Montgomery St. where they recovered a 9mm copper slug that shorted the line and left people in the blocks  nearby without power for about an hour.