US federal authorities have issued a terror threat warning to local law enforcement officials nationwide for the July 4 holiday, according to an anonymous US official cited by local media.
No specific or credible threat has yet been indicated, but intel gathered by the Department of Homeland Security and the FBI told local law enforcement authorities about threats from Islamic State and other terrorist groups, USA Today reported.
READ MORE: Fatal Friday: Scores dead after France, Tunisia & Kuwait hit by terrorist attacks
The warning comes days after three deadly attacks in Tunisia, France, and Kuwait, in which scores of civilians were killed. Islamic State (IS, formerly ISIS/ISIL) has claimed responsibility for the three attacks.
What has been dubbed “a day of terror” in the media followed IS calls for war on infidels. The terrorist group has urged attacks by “Muslims everywhere” during the holy month of Ramadan.
On Friday, commenting on the attacks, Department of Homeland Security Secretary, Jeh Johnson said local authorities were "vigilant and prepared'' ahead of the celebrations on July 4.
"We will also adjust security measures, seen and unseen, as necessary to protect the American people. We continue to encourage all Americans to attend public events and celebrate this country during this summer season, but always remain vigilant,'' he said.
READ MORE: US officials warn of ISIS-inspired attack through July 4
The secretary also referred to last week's deadly Charleston church shooting, saying that such "acts of mass violence will never divert, discourage or frighten us.''
The latest warning follows foiled attacks on US citizens earlier this month: a potential assault on police officers in Boston, and a failed attempt to attack an FBI agent during a home search of an IS-related suspect.
Alerts such as the latest one are frequently issued before major national holidays.