NYPD treating 9/11 anniversary in 'elevated threat environment'

With the 20th anniversary of the 9/11 terror attacks days away and the resurgence of the Taliban in Afghanistan, the NYPD has increased its security alert level despite no known credible threats against New York City.

"We are treating this as an elevated threat environment absent specific information," said John Miller, NYPD Deputy Commissioner for Intelligence and Counterterrorism. "Why? Here's why: we have seen the call to action this year be louder and better organized from terrorist groups than we have seen in prior years. That is probably because this 9/11 remembrance marks the 20th anniversary but it also comes at the same time of the fall of a U.S. supported government in Afghanistan and the return of the Taliban."

The presence of uniformed and plainclothes officers will be increased throughout the city and on Saturday during a ceremony marking the anniversary.

Explosive detection canines, explosives detection instruments, license plate readers, cameras and other equipment will be in use.

Get breaking news alerts in the free FOX5NY News app!  |  Sign up for FOX 5 email newsletters

More than a dozen, significant propaganda releases, mostly from Al-Qaeda, are also being monitored.

"We know the ways of the terrorists," said Mayor Bill de Blasio during a briefing from City Hall. "We understand this anniversary is going to be on their minds, too. We've seen some attacks recently around the world that are worrisome which is why we monitor all the time."

The mayor reminded New Yorkers that the use of drones in and around Ground Zero is never allowed.

"They are going to be confiscated," added de Blasio.

MORE SEPTEMBER 11 COVERAGE:

Bruce Springsteen performs at the 9/11 ceremony

Obama hails the heroes of 9/11

The U.S. marks 20 years since 9/11

Biden, now president, to mark 9/11 rite amid new terror fear

9/11 fallout includes decades of worry about toxic WTC dust

Victims of 9/11-related illnesses honored at new Nassau County memorial

Suffolk County students plant flags for 9/11 anniversary

9/11 responders and other workers pay it forward as volunteers

Ground zero rebuilding still unfinished, 20 years later

NYC's one murder from Sept. 11, 2001, remains unsolved 20 years later

Remembering Ronald Bucca, 'The Flying Fireman' | 9/11: 20 Years Later

Retired firefighter builds ceremonial truck to honor friend who died of 9/11 illness

NYPD increasing security for 9/11 ceremonies

Identifying World Trade Center remains continues 20 years after 9/11

New DNA technology approved to identify remains of more than 1,100 victims of 9/11

9/11 as American History: Schoolteachers prepare lessons

'The Bravest' brew benefits 9/11 first responders

'Never Forget Walk' continues path to Ground Zero to mark 20th anniversary of 9/11

Surviving 9/11 was 'just the first piece of the journey'

20 years after 9/11, scars, pain from loss remain

Girl Scout captures emotional first-person stories for 9/11 documentary

September 11Lower Manhattan