ROUGH CUT (NO REPORTER NARRATION)<br/> <br />United Nations Secretary General, Ban Ki-moon, condemned on Saturday the attack on a restaurant in Kabul, Afghanistan in the strongest terms possible.<br/> <br />Up to 21 people, mostly foreigners, were killed on Friday when a suicide bomber blew himself up outside the popular Lebanese restaurant in the Afghan capital, police said. Four UN staff were among those killed.<br/> <br />"This is another sad moment for the United Nations, where our distinguished four colleagues have been killed by terrorist attack in Kabul," he said.<br/> <br />Gunmen burst into the Lebanese restaurant spraying diners with bullets after the bomber blew himself up near the entrance around 7:30 p.m. local time on Friday, just as people had sat down for dinner.<br/> <br />Islamist Taliban insurgents claimed responsibility for the attack in the upscale Wazir Akbar Khan district, which hosts many embassies and restaurants catering to expatriates.<br/> <br />"On many occasions I have condemned in the
