Caution urged by US

*the us state department's travel-warnings list includes 28 countries to which Americans are advised not to travel. An additional 16 "public announcements" warn of short-term dangers to US travelers elsewhere.

Travel warnings:

Bosnia-Herzegovina

Serbia-Montenegro

Eritrea

Ethiopia

Pakistan

Yemen

Angola

Albania

Sierra Leone

Iraq

Central African Republic of Congo

Democratic Republic of the Congo

Colombia

Liberia

Tajikistan

Sudan

Afghanistan

Somalia

Lebanon

Guinea-Bissau

Nigeria

Burundi

Rwanda

Algeria

Iran

Montserrat

Libya

Cited for short-term dangers:

Zambia, March 2-June 1, 1999

Uganda, March 1-May 31, 1999

Mexico, Feb. 2-June 18, 1999

Nigeria, Feb. 17-March 10, 1999

Worldwide caution, Feb. 16-March 31, 1999, related to PKK leader Abdullah Ocalan's transfer to Turkey.

Uzbekistan, Feb. 16-March 16, 1999

Y2K worldwide notice, Jan. 29, 1999-March 1, 2000

Indonesia, Jan. 22-April 22, 1999

Egypt, Jan. 5-March 5, 1999

Ecuador, Dec. 31, 1998-March 31, 1999

Worldwide caution, Dec. 24, 1998-March 18, 1999, following military strikes on Iraq and arrests in embassy bombings.

Kenya, Dec. 18, 1998-March 17, 1999

Chile, Dec. 17, 1998-March 21, 1999

Worldwide caution, Dec. 16, 1998-March 15, 1999, related to military strikes on Iraq

The Comoros, Dec. 8, 1998-March 8, 1999

Mexico, Dec. 4, 1998-Nov. 30, 1999

Source: US State Department