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New York City Police Department officials and other law enforcement personnel across the United States were alerted to a new threat from ISIS after the terror group released a video message Saturday calling for its followers to "rise up," CNN reported.

An ISIS spokesman, Abu Mohammed al Adnani, is seen saying that followers should "rise up and kill intelligence officers, police officers, soldiers, and civilians," specifically naming the United States, France, Australia and Canada as targets, according to a memo that CNN obtained.

It's not the first time ISIS has made such a threat.

NYPD employees were told to "remain alert and consider tactics at all times while on patrol," especially in light of the attacks in France last week, in an internal memo.

The Federal Bureau of Investigation and the U.S. Department of Homeland Security issued a similar bulletin to law enforcement across the country. That bulletin and the NYPD memo makes it clear that this new message is consistent with previous threats that ISIS and others, including al Qaeda, have issued.