On Sunday, the junta closed all Guinea-Bissau's air and sea borders after Portugal announced it was sending two navy ships and a military plane for a possible evacuation of its nationals.

BBC: Guinea-Bissau junta agrees pact with some parties

It said it was urgently appealing, along with the International Organisation for Migration, for governments to engage in "a massive humanitarian evacuation of tens of thousands of Egyptians and other third country nationals".

BBC: Libya unrest: Aid crisis grows on Tunisia border

Thousands of foreign nationals have reportedly crammed into the Cairo airport for evacuation from the turmoil in Egypt.

FORBES: The Business Of Evacuation In Egypt