In this story:

• Suspect details terrorist network
• Two more suspects captured in Pakistan
• Related stories and sites

NAIROBI, Kenya (CNN) -- A suspect in the August 7 bombing at the U.S. Embassy in Nairobi, Kenya, has provided Pakistani authorities with information that formed the basis for as many as five raids by FBI agents in Kenya this week, sources familiar with the investigation told CNN.

Also, The Washington Post reports that the suspect implicates Islamic fundamentalist Osama bin Laden in the attack.

The suspect, Mohammed Saddiq Odeh, was arrested in Karachi, Pakistan, on the day of the bombings after he arrived on a flight from Nairobi. Pakistani authorities returned him to Kenya on August 16.

Osama bin Laden

Since returning to Nairobi, Odeh has cooperated on a limited basis with investigators, the sources said.

The Nation newspaper reported that in one raid Tuesday, large amounts of explosives were confiscated from a Nairobi hotel.

The paper reported FBI agents found 800 kilograms (1,760 pounds) of TNT in two rooms at the Hilltop Hotel which were rented by two Palestinians, a Saudi and an Egyptian from August 3 to August 7.

The Post reported on Wednesday that Odeh told Pakistani authorities that bin Laden -- a Saudi Arabian millionaire -- finances and organizes an international terrorist network from a base in Afghanistan. Odeh told the Pakistanis that American interests are the primary target of the network. The Post reports that Odeh is said by the Pakistanis to be a Palestinian from Jordan.

While the Post says the notes provide little new information about the bombing in Nairobi, Odeh did provide much information that corroborates what U.S. officials have long suspected about bin Laden.

The Post report quotes Pakistani officials, who spoke on condition of anonymity and shared their notes with Post reporters, as saying Odeh told them bin Laden commands between 4,000 and 5,000 militant operatives from a number of different countries. He said they are often deployed in armed actions and that the network is highly organized. Operatives rarely know anything about actions in which they are not involved, he said.

The Post reported that Odeh told the Pakistani officials he was an engineer who had been sent to Kenya to provide technical and logistical support for the bombing, but that he had been instructed to leave Kenya hours before the blast.

The newspaper quoted the officials as saying they were not surprised Odeh had not repeated the story he told Pakistani authorities to U.S. and Kenyan investigators.

He was "fully aware that his on-the-record admission of anti-U.S. guerrilla operations would take him to the gallows", one official told the paper.

While in Pakistan, the officials said, Odeh had sought to gain the sympathy of his captors, who were fellow Muslims.

Odeh reportedly told the Pakistani authorities that bin Laden has a large cache of weapons stored throughout Afghanistan and that his network has full-time operations in Egypt, Saudi Arabia, Sudan, Yemen, Ethiopia, Pakistan, Afghanistan and Somalia.

Odeh reportedly recounted some armed operations abroad in which he or others participated in with support from bin Laden, including an attack in Somalia in '93 that killed 18 U.S. troops.

The New York Times reports in its Wednesday edition that two more suspects were arrested by Pakistani authorities in connection with the bombings.

The Times report says the two men, identified as a Saudi and a Sudanese, were arrested Monday as they tried to cross the Pakistan border with Afghanistan through the Khyber Pass using fake Yemeni passports. Odeh was arrested trying to enter Pakistan with a fake Yemeni passport.

The report says a Pakistani official called one of the suspects a "pivotal participant" based on a statement made by Odeh. Both suspects are being interrogated by Pakistani officials.

According to the Times' report, the two new suspects entered the country on August 7, the same day as Odeh, and were on the same flight from Kenya with him.

Fears of further attacks against U.S. installations around the world led to the evacuation Tuesday of 200 Americans from Pakistan, but the embassy there said some 6,700 Americans remain in Pakistan despite a State Department warning.

U.S. Ambassador to Pakistan Thomas Simons and a scaled-back embassy staff will remain on duty in Karachi.

The August 7 bombing in Nairobi killed more than 247 people and injured 5,000. A simultaneous car bomb attack against the U.S. Embassy in neighboring Tanzania killed 10 people.