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.
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At the same time, authorities moved into a kosher store where hostages were being held by the alleged cop-killer. While 15 hostages escaped, four were killed, as well as the suspect.
CNN’s Kristina Sgueglia contributed to this report.
