BERLIN, Aug 16 (Reuters) - No evacuation flights are leaving Kabul airport at the moment because desperate people trying to flee the country are blocking the tarmac, a spokesperson for the German foreign ministry said on Monday. "I understand there is no air traffic at the moment because a large number of desperate people are crowding the tarmac," the spokesperson told journalists in Berlin. Forty staff from the German embassy were flown out to Doha overnight, he said, adding a small team of less than ten staff would remain at Kabul airport to coordinate evacuations. Reporting by Sabine Siebold Editing by Caroline Copley Our Standards: The Thomson Reuters Trust Principles.