"We are suspending contacts until they investigate this incident and bring to justice those who planned it, and take real steps to stop terrorism."

Mr. Bush has suspended military aid and limited contacts with the Chinese Government, but has resisted demands in Congress for more stringent sanctions.

He also ordered the Pentagon to suspend formal contacts with the Indonesian military.

Despite the angry distress of Congress and the American public, he limited official reaction to suspending military deliveries and high-level contacts.

The Administration has now suspended high-level diplomatic as well as military contacts.

It requires all countries to suspend cultural, scientific and technical contacts with Belgrade and to reduce the size of its foreign diplomatic missions.

New Zealand suspended high-level contacts with Israel and demanded an apology and an explanation.

China reacts angrily, suspending military and security contacts with the US, and imposing sanctions on US firms involved in the deal.

The European Union imposed specific sanctions on 20 members of the governing party by refusing visas, freezing assets and suspending bilateral ministerial contacts.

In January 2009, the Chief Rabbinate of Israel suspended contacts with the Vatican.