NYPD on high alert following ISIS's call to "rise up and kill police officers"

ISIS spokesman Abu Mohammed al Adnani told those loyal to the Islamic State to “rise up and kill intelligence officers, police officers, soldiers, and civilians” in the U.S., Canada, France, and Australia. “Do not let the battle pass you by wherever you may be. Strike their police, security, and intelligence members, as well as their treacherous agents,” Adnani added. He suggested that if his holy warriors did not have an explosive device or a firing weapon, they should instead “smash his head with a rock, or slaughter him with a knife, or run him over with your car.”

CNN received an NYPD internal memo that stressed law enforcement should “remain alert and consider tactics at all times while on patrol.”