Scandinavian travel firms decided Thursday night to evacuate all of their travellers in Egypt due to its unstable political situation, according to the Danish News Agency.

Hundreds of Danish, Norwegian and Swedish travellers will be affected by the decision.

Many travel firms said the evacuation will be complete by Monday. The firms suspended future travel to Egypt until early October.

The decision was taken after the governments of Denmark, Sweden and Norway warned against unnecessary travel to Egypt.

Violence erupted in Egypt on Wednesday after a deadly crackdown by police forces on supporters of deposed president Mohamed Morsi who were holding sit-ins at the Rabaa Al-Adawiya Mosque in Cairo and Al-Nahda Square in Giza.

The sit-ins were dispersed by police, leaving a death toll – still rising – of at least 638 dead and thousands injured, according to official figures.

Incensed by the bloody crackdown that has claimed more than 600 lives, Morsi loyalists orchestrated nationwide assaults on Christian targets Wednesday, wreaking havoc on churches, homes, and Christian-owned businesses throughout the country.