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A new map released by the Foreign Office reveals the 18 most dangerous countries that British travellers are being warned not to visit.

The diagram includes six countries in the Middle East, including Syria and Iraq, as well as 45 nations deemed partly high-risk due to unrest in certain regions.

One of these is Egypt, following the Russian commercial plane which crashed after taking off from Sharm el-Sheikh , killing 224 passengers and crew last week.

Thousands of Brits remain stranded in Egypt after the Foreign Office advised UK travellers against “all but essential travel by air to or from Sharm el-Sheikh”.

Flights and holiday packages in the resort will not resume until Thursday November 26 at the earliest.

The safety of foreign countries is ranked by the Foreign & Commonwealth Office.

It regularly issues travel advice for British citizens, telling them where is safe to go.

They are advising against all travel to Syria, warning there is a high threat from terrorism, kidnapping and widespread fighting. The FCO say this has caused the temporary suspension of commercial flights, closed roads, impeded access to land border crossing points and led to the closure of some border crossings.

The 18 most dangerous countries to avoid

Afghanistan

Burundi

Central African Republic

Chad

Democratic Republic of the Congo

Guinea

Iraq

Libya

Mauritania

Niger

Palestinian territories

Sierra Leone

Somalia

Somaliland

South Sudan

Syria

Tunisia

Yemen

Countries deemed to be partially dangerous:

Algeria

Angola

Armenia

Azerbaijan

Bangladesh

Burkina Faso

Burma (Myanmar)

Cambodia

Cameroon

Colombia

Djibouti

Ecuador

Egypt

Eritrea

Ethiopia

Georgia

Haiti

India

Iran

Israel

Ivory Coast

Japan

Jordan

Kenya

Kosovo

Lebanon

Madagascar

Malaysia

Mali

Nepal

Nigeria

Pakistan

Philippines

Republic of Congo

Russia

Saudi Arabia

Sudan

Tajikistan

Thailand

Turkey

Uganda

Ukraine

Venezuela

Western Sahara