US Defence Secretary Jim Mattis said the killing of a top Afghan official would not fundamentally change the security situation in Kandahar province. <br />''<br />''<br />''He said it is a tragic loss of a patriot for Afghanistan, but he doesn't see it having a long-term effect on the area. <br />''<br />''<br />''A security chief and a journalist were killed and three Americans injured in the terrorist attack which was carried out by a gunman at a high-level security meeting yesterday. The Taliban has claimed responsibility for the attack. <br />''<br />''<br />''Prime Minister Narendra Modi condemned the dastardly terrorist attack in Kandahar, Afghanistan. <br />''<br />''<br />''In a tweet, Mr Modi said, India stands in solidarity with the brave people of Afghanistan in fighting terrorism imposed on them. <br />