Military flights evacuating diplomats and civilians from Afghanistan resumed early on Tuesday after the runway at Kabul airport was cleared of thousands of people desperate to flee after the Taliban seized the capital.A day after chaotic scenes in which U.S. troops fired to disperse crowds and people clung to a U.S. military transport plane as it taxied for take-off, Reuters reported that the number of civilians at the airport had thinned out, quoting a Western security official.U.S. forces on Sunday took charge of the airport, their only way to fly out of the country, as the militants were winding up a dramatic week of advances across the country with their takeover of the capital without a fight.Flights were suspended for much of Monday, when at least five people were killed, witnesses said, although it was unclear whether they had been shot or crushed in a stampede.