After investigating reports of terror threats against Los Angeles International Airport and John F. Kennedy Airport in New York, federal authorities say they have yet to determine the threat as credible or serious, ABC reported.
In the hours leading up to the anniversary of the September 11 attacks, federal officials emphasized they discovered no possible threats to the U.S. although they continued to track down the sources of them.
The Federal Bureau of Investigation and the Department of Homeland Security alerted law enforcement agencies across the country of their information.
A man reportedly told authorities he had information suggesting Ayman al-Zawahri, the leader of Al Qaeda, was in his "final stages" of organizing a massive attack on both Los Angeles and New York airports, according to official documents. He also said three students at Columbia University were recruited to wear suicide bomb vests to use at the New York airport.
After the airport attacks, the man claimed it would be followed by another one involving terrorists posing as New York City taxi drivers.
Federal investigators became "highly suspect" of the man who provided the information and included in their report that he would tell U.S. officials more if they give him a "large and specific" amount of money. The man's claims of terror threats have yet to be confirmed, but law enforcement is taking it seriously since his information was so specific.
The man is currently being investigated by officials, in addition to his history and associations being dissected.
The New York Police Department said the threat is not credible and will not be posting additional resources.
"The FBI and our Joint Terrorism Task Force receive hundreds of threats daily, and we work around the clock with our partners to protect this city and nation," read the FBI statement. "We remain on a heightened state of alert, but stress that there is no specific or credible threat at this time."