Increasing numbers of expats and holidaymakers are converging on airports, attempting to get flights out of Egypt.
Some countries, including the US and Turkey, are offering their citizens evacuation flights, others though can do nothing but wait.
Scores of regular commercial flights have been cancelled or delayed, as foreign governments warn against all but essenial travel to Egypt.
Not everyone is heeding the advice, though. Polish holidaymakers are among those deciding to go ahead with their travel plans.
Some people travelling to the Red Sea coast say they are not worried because most of the unrest is in the north.
One woman said she weighed up the risk of going but then heard that tourism agencies were not giving refunds or allowing changes in reservations.
Whether travellers will have a lot to visit during their stay in Egypt is another matter: the military has blocked access to many tourist sites, including the pyramids.