World's leaders offer their words of condolence

UK

Security was tightened at London’s three main airports.

France

Interior ministry put the country under general security alert.

Belgium

The nation’s security forces were put on high alert around hey installations. The country is host to NATO and SHAPE, the supreme headquarters for allied forces in Europe.

Israel

Local radio reported that the government ordered the immediate evacuation of all its embassies and public facilities worldwide. The nation’s foreign ministry declined to comment.

Israeli army rescue teams were preparing to head to the US to help rescue efforts.

Japan

Prime Minister Junichiro Koizumi ordered police to tighten security outside US bases across the country.