KABUL, Afghanistan, October 02, SPA -- A mother and her two children boarded a police bus just seconds before a suicide bomber detonated his explosives inside, an attack that killed 13police and civilians Tuesday, the second such bombing inAfghanistan's capital in four days, police and witnessessaid. Four children were among the 13 killed by a man wearing apakul _ an Afghan hat commonly worn in the country's north_ and a shawl around the upper half of his body called achador, said witness Amin Gul, who owns a metalworking shopnext to the blast site. «When the bus came, an old man got on, then a woman withtwo children, then the guy wearing the chador entered, andthen a big boom,» said Gul. Ten people were wounded in the attack, the Associated Press reported.--SPA www.spa.gov.sa/487528