NEW YORK - The annual LGBT Pride March on Sunday is expected to attract even larger crowds than usual and that means more NYPD officers and resources will be there as well.

This year marks the 50th anniversary of the Stonewall Uprising which helped launch the modern gay rights movement. New York is also the host of this year's WorldPride celebration with events taking place throughout the weekend.

"Sunday the eyes of the world will again be on New York City," said NYPD Chief of Counterterrorism James Waters.

Thousands of uniformed and plainclothes police officers will be deployed along the route, which includes large stretches of Fifth and Seventh Avenues in Chelsea and sections of Greenwich Village. There will be heavy weapons teams, bomb squad officers and bomb sniffing dogs. A hundred blocker cars and sand-trucks will be positioned to deter vehicle attacks.

"Our hate crimes task force investigators will be on the ground as well. We will also have eyes in the sky as aviation helicopters and roof tops surveillance teams monitor the large crowds," said NYPD Chief of Department Terence Monahan.

This year's Pride March will be two and half mile long, nearly three-quarters of a mile longer than in previous years. An expected 130,000 people will march and large crowds will line the sidewalks.  

The NYPD says it will use an aerial drone to monitor the crowd and special sensors to detect any unlawful drones.

"The sensors will identify for us and alert us to a drone flying in the air. And then we will identify the user and interdict that," Waters said.

The NYPD says there are no threats against the city or pride events at this time, but clearly officers have to keep their eyes and ears open.

Just in case a so-called lone wolf is plotting something like the deadly Halloween truck attack in Lower Manhattan in 2017 or the subway pipe bomber beneath 42nd Street two months later.

"ISIS and al-Qaeda that have been fairly virulent and consistent with anti-LGBT in their propaganda as well as an emerging right-wing threat which has a mixed bag of those threats too," said NYPD Deputy Commissioner of Intelligence and Counterterrorism John MIller.

The NYPD says if you see or hear about anything suspicious speak up right away.  

"There are going to be cops every where and if you see something that makes you feel uncomfortable make sure you tell a cop," said NYPD Commissioner James O'Neill.

The police commissioner says give officers a chance to investigate to keep everyone safe.