FBI: No credible threats for September 11

WASHINGTON (CNN) -- As the September 11 anniversary approached, the FBI said it has received many threats of "undetermined reliability," but stressed that it has no indication of any specific or credible ones.

Several threats refer to the events of 9/11 and to New York and Washington, the FBI said in a bulletin issued last week.

The information was issued to local police, critical industries and the public by the FBI's National Infrastructure Protection Center on Thursday.

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The bulletin cited three high-profile events as possible reasons for the increase in threat-related information -- the anniversary of the 9/11 attacks, the U.N. General Assembly meetings to be held Tuesday through September 20 in New York and the World Bank and International Monetary Fund meeting September 25-29 in Washington.

The FBI said it possesses no information indicating a specific threat but it is continuing to investigate the uncorroborated information.

"The general time frame of the first anniversary of the terrorist attacks of September 11, 2001, represents a potentially attractive target for terrorists," the bulletin said.

In addition to the Web posting, the notice on the threats was sent to all state and local law enforcement agencies and to public and private organizations in eight industries identified as "critical infrastructures" to be protected against terrorist attacks.

The latter include electrical power, telecommunications, transportation, gas and oil storage and delivery, water supply, banking and finance, emergency services and government operations.

The September 11 attacks provided a significant boost to the private sector's willingness to cooperate with federal law enforcement agencies.

Several private-sector organizations -- including the food and chemical industries and information technology groups -- have set up centers that work closely with the FBI's National Infrastructure Protection Center to identify and analyze potential threats to public safety.