Search teams comb a collapsed apartment building in Islamabad

Nations across the globe are rushing help to South Asia as their leaders offer condolences following Saturday's massive earthquake.

President Bush said help is on the way to the victims of what he called a "horrible tragedy" as the U.S. ambassador to Pakistan said U.S. military assistance and supplies are being offered along with relief funding.

Secretary of State Condoleezza Rice says the United States stands with Pakistan and India, just as they stood with the United States after Hurricane Katrina. She says she spoke with her counterparts in Pakistan and India to convey sympathy and offer whatever assistance may be needed.

The European Union said it is ready to provide as much as $3.5 million to relief efforts. British search and rescue teams, including rescue dogs, are en route to the afflicted region.

U.N. Secretary-General Kofi Annan said he is saddened by the loss of life and destruction caused by the earthquake, as a U.N. emergency coordination team headed to Pakistan.

Ireland has pledged about $1 million in aid to the devastated area, and Turkey is sending planes carrying medical teams. The Turkish Red Crescent has put its teams on alert. State-run Russian media Itar-Tass says Moscow is ready to send relief supplies and rescue workers to Pakistan.

Pakistani Prime Minister Shaukat Aziz says his country is reviewing offers of help.