<p><br /> A Taliban suicide car bomber has killed 12 Afghan civilians and six foreign troops in an attack on a NATO convoy in the Afghan capital Kabul.<br /> </p><p><br /> A Taliban spokesman said they were responsible for the attack and had used a van packed with explosives.<br /> </p><p><br /> The interior ministry said 12 Afghan civilians had been killed and 47 others were wounded.<br /> </p><p><br /> One senior police officer claimed five US and two Canadian soldiers had been killed, while another source said five foreign troops had died. A spokesman for NATO-led forces would not confirm the toll but said a convoy had been attacked.<br /> </p><p><br /> President Hamid Karzai said that there had been casualties from the NATO-led International Security and Assistance Force, without giving details.<br /> </p><p><br /> He told a news conference: "A suicide bomber attacked NATO troops that inflicted casualties on both NATO and innocents civilians including women and school children. I condemn this attack on strongest terms and hope that Afghanistan one day gets rid of this."<br /> </p><p><br /> An increasingly resurgent Taliban announced a spring offensive in May against government officials and foreign forces and diplomats in Afghanistan.<br /> </p>