Greek Prime Minister Kyriakos Mitsotakis (rear) meets with Austrian Interior Minister Karl Nehammer (1st L) in Athens, Greece, on Aug. 25, 2020. Austrian Interior Minister Karl Nehammer on Tuesday expressed his confidence in the Greek government's handling of the migration issue during his meeting with Prime Minister Kyriakos Mitsotakis in Athens, said Greek government sources. (Photo by Nick Paleologos/Xinhua)

Greek Prime Minister Kyriakos Mitsotakis (L) greets Austrian Interior Minister Karl Nehammer with an elbow bump prior to their meeting in Athens, Greece, on Aug. 25, 2020. Austrian Interior Minister Karl Nehammer on Tuesday expressed his confidence in the Greek government's handling of the migration issue during his meeting with Prime Minister Kyriakos Mitsotakis in Athens, said Greek government sources. (Photo by Nick Paleologos/Xinhua)

Greek Prime Minister Kyriakos Mitsotakis (L) greets Austrian Interior Minister Karl Nehammer with an elbow bump prior to their meeting in Athens, Greece, on Aug. 25, 2020. Austrian Interior Minister Karl Nehammer on Tuesday expressed his confidence in the Greek government's handling of the migration issue during his meeting with Prime Minister Kyriakos Mitsotakis in Athens, said Greek government sources. (Photo by Nick Paleologos/Xinhua)