Police officers aid a wounded colleague in the Afghan capital, Kabul.<br/> <br />At least two policemen were wounded in shootings that followed several explosions in the city.<br/> <br />The first blast was a suicide car bomb which blew up at about 4 p.m. There was a second blast 30 minutes later.<br/> <br />A Reuters cameraman reported four blasts, interspersed by heavy gunfire.<br/> <br />There was no official word on casualties.<br/> <br />One eyewitness describes the scene.<br/> <br />(SOUNDBITE) (Dari) EYE WITNESS, AHMAD JAN, SAYING (AUDIO AS INCOMING):<br/> <br />" I was inside the office, suddenly I heard a bang and I saw four people running towards the building. Security forces were running towards the other side looking for other attackers."<br/> <br />A Taliban spokesman, Zabihullah Mujahid, speaking to Reuters by telephone, claimed responsibility for the attack.<br/> <br />It was not clear what the attackers' target was, but the suicide blast was close to U.N. accommodation and the headquarters of the Afghan Public Pro
