Washington, November 5 (RHC)-- U.S. intelligence agencies have warned about possible terror attacks planned by the al-Qaeda terrorist group for the day before the U.S. presidential election. Federal officials told CBS News on Friday that the terrorist attacks may possibly target three U.S. states of New York, Texas and Virginia before Election Day on Monday.

"The counter-terrorism and homeland security communities remain vigilant and well-postured to defend against attacks here in the United States," a senior FBI official told the news outlet.

"The FBI, working with our federal, state and local counterparts, shares and assesses intelligence on a daily basis and will continue to work closely with law enforcement and intelligence community partners to identify and disrupt any potential threat to public safety."

Media reports said U.S. authorities are taking the threat seriously although its credibility has not been confirmed. The US presidential election is to be held on Tuesday, November 8, with over 100 million Americans expected to go to the polls.