HERAT (Agencies) - An Afghan district governor and five police were killed on Sunday in a Taliban ambush in the western province of Herat, the provinces police chief said. A Taliban spokesman, Qari Mohammad Yousuf, said by telephone from an undisclosed location that Taliban fighters had carried out the attack. An unusually warm winter has allowed the Taliban to continue attacks in the normally quieter cold months in Afghanistan, where violence reached its worst levels of the eight-year-old war last year despite a rising number of foreign troops. The latest attack happened as the officials were driving in a vehicle on a road in the remote Chesht Sharif district of the province, the provincial police chief, Esmatullah Alizai, told Reuters by phone. The district chief, a senior district police officer and four other of his colleagues were killed in the ambush, Alizai said. One policeman was wounded, he said without giving further details. Meanwhile, NATO-led troops shot dead an Afghan civilian whose vehicle approached a convoy on Sunday in an area that has seen violent civil unrest over the past week in Afghanistan, the alliance said. The International Security Assistance Force (ISAF) said troops had opened fire after a large vehicle with no headlights approached a convoy at high speed early Sunday morning. Meanwhile, the Taliban have kidnapped two Chinese engineers and four Afghans accompanying them in the north of the country, a local official and the Taliban said on Sunday. Unknown people kidnapped yesterday (Saturday) two Chinese engineers along with their two local drivers and two guards in Qaysar district, Faryab province, said local government spokesman Jawaed Bidar. Bidar said the engineers were helping to build a road. Taliban spokesman Yusuf Ahmadi said that Our Mujahideen have taken two Chinese engineers, their two drivers and their two guards. Yusuf said the Talibans Islamic court or shura would decide on their fate. Criminal gangs and Taliban have kidnapped several dozen foreigners, many of them journalists, since the 2001 US-led operation to topple the Taliban. The Taliban two weeks ago denied that they were holding two journalists from France 3 public television who were snatched with three Afghan assistants in the eastern province of Kapisa on December 30.