Secretary of State Madeleine K. Albright marked the first anniversary of the fatal bombings at two U.S. embassies in Africa with a pledge yesterday that "we will not rest" until the terrorists are caught.

A letter from President Clinton, read at a State Department ceremony, said: "The intended victims of this vicious crime stood for everything that is right about our country and the world, Americans and Africans working together for peace and progress and a better future."

The bombings at the embassies in Nairobi, Kenya, and Dar es Salaam in neighboring Tanzania killed 224 people, including 12 Americans.

Seventeen people have been charged by federal prosecutors in New York in the nearly simultaneous attacks.

Nine suspects remain at large, including Saudi dissident Osama bin Laden, accused of ordering the attacks.

Albright told about 250 invited guests that the mourning continues--as does the search for justice. In attendance were friends and families of the U.S. victims, and some of the injured Africans still receiving treatment in the United States.

"Today we vow that America will not be intimidated. We will not retreat from the world. We will not rest until every one of those responsible for the embassy bombings has been brought to justice, and we thank our law enforcement and intelligence personnel for the progress already made," Albright said.

In the letter read by his national security adviser, Samuel R. "Sandy" Berger, Clinton added: "Terrorists murdered these men and women and tore the hearts of those who loved them.

"But their violence could not and did not destroy the ideals for which their victims stood. Instead, we have only intensified our commitment to fundamental values, democracy and human rights, justice and tolerance."

CAPTION: Madeleine K. Albright speaks at ceremony honoring victims of last year's bombings at two U.S. embassies.