Federal authorities have warned local law enforcement officials across the country about an increased concern involving possible terror attacks targeting the upcoming 4th of July holiday weekend.

Kristin Fisher reported that the FBI and the Department of Homeland Security issued an intelligence bulletin warning of a chance that an ISIS-inspired terror attack could occur in the U.S. 

She said no specific or credible threat has been confirmed by officials.

However, a former Pentagon official told Fox News that ISIS views Independence Day as a key target, Fisher stated.

Federal authorities have disrupted a number of ISIS-inspired plots, including a planned assault earlier this month on Boston police officers.  

On Friday, DHS Secretary Jeh Johnson issued a statement following the attacks in Tunisia, France and Kuwait, saying in part, "Particularly with the upcoming July 4th holiday here in the United States, the Department of Homeland Security and the FBI continue to communicate with state and local law enforcement about what we know and see." 

"We will also adjust security measures, seen and unseen, as necessary to protect the American people,'' Johnson stated. "We continue to encourage all Americans to attend public events and celebrate this country during this summer season, but always remain vigilant.''

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