FBI Director Louis Freeh toured the bombed-out U.S. Embassy in Tanzania Thursday, while in the Kenyan capital thousands prayed and sang at a memorial service held to ease the scars from "the day Satan visited Nairobi."

Freeh, who was traveling to Nairobi later, met with FBI agents and local officials in the Tanzanian capital of Dar es Salaam.Two bombs exploded Aug. 7 at the U.S. embassies in Nairobi and Dar es Salaam, killing 247 people in Kenya and 10 in Tanzania. More than 5,500 people were injured, mostly Kenyans.

"We haven't made any conclusions that anybody being held here is connected at this point to the bombing," Freeh said, referring to the two suspects detained in Tanzania. "But we do want to continue to work with our colleagues here to interview not just those individuals but other individuals who may have information."

Tanzanian Home Affairs Minister Ali Ameir Mohammed would not give the names or nationalities of the two men but said Freeh offered to send Tanzanian police to Washington, where most of the forensic evidence is being analyzed.

In Nairobi, thousands wearing red ribbons as a sign of mourning gathered on a grassy hill in downtown Uhuru Park Thursday to seek peace and healing from the attacks.

"It is the day Satan visited Nairobi," President Daniel arap Moi said at an ecumenical memorial service for the bombing victims.

The names of the hundreds who died were read in batches of six, punctuated by murmurs of "Lord have mercy" from mourners beneath a steel-gray sky. A trumpet soloist played "Amazing Grace."

U.S. Ambassador Prudence Bushnell, no longer wearing bandages over the cuts she received in the bombing, promised that America would help East Africans through this difficult time.

"Together we will dispel the shadows of darkness, emerge from the veils of grief, and create a brighter tomorrow," she said.

Both Kenya and Tanzania have pressed for compensation for damage to lives and property. U.S. Secretary of State Madeleine Albright promised aid earlier this week but did not specify an amount.

In Pakistan, two people were being questioned in the bombings. The men reportedly were named by a suspect with alleged links to exiled Saudi millionaire Osama bin Laden, whom U.S. officials call a major sponsor of terrorism.

U.S. officials are pressing to get their hands on bin Laden, who lives in Afghanistan, but they have received mixed signals from Afghanistan's ruling Taliban religious army.

A group reportedly founded by bin Laden - the World Islamic Front for Jihad Against Jews and Crusaders - issued a warning Wednesday in the respected London-based Arabic newspaper al-Hayat. The statement said that "strikes will continue from everywhere" against the United States.

Al-Hayat said that statement was accompanied by others from the Islamic Army for the Liberation of Holy Shrines, which claimed responsibility for the embassy bombings.

On Tuesday, FBI agents and Kenyan detectives raided a downtown Nairobi hotel and carried away guest lists and billing records.

The Daily Nation, a Kenyan newspaper, reported that the agents were acting on information provided by Mohammed Saddiq Odeh, who was arrested in Pakistan on the day of the bombings and returned Aug. 14 to Kenyan authorities. Odeh is reportedly linked to bin Laden.