New Yorkers heading out of town today for the Thanksgiving holiday will notice an increased security presence at area airports, rail stations and other transit hubs as city and federal officials reiterate the need to remain vigilant but not worried in the wake of the Paris terror attacks.

Speaking earlier in the day in Washington, President Barack Obama says the country is under no credible threat of terrorism this holiday weekend.

The president says the U.S. is committed to destroying the Islamic State group through a continued coalition of airstrikes against specific targets.

The terrorist organization took responsibility for the attacks in Paris that killed 130 people earlier this month.

Obama says law enforcement agencies across the country are remaining vigilant in preventing a similar attack from happening on our soil.

"It's understandable that people worry something similar could happen here. Watching the events in Paris made the threat feel closer to home. So as we go into Thanksgiving weekend, I want the American people to know is we are taking every possible step to keep our homeland safe," Obama said.

The president says the public will be warned if the country is facing a credible threat of an attack.

Here in New York, people were seen waiting on lines at LaGuardia Airport with some petting pets who protect them.

At Penn Station, Amtrak Police say the State Department's global travel alert for terrorism this week has them patrolling with a bit more people.

"Amtrak Police are out in force today. It's all hands on deck. And we'll be out there in pretty high visibility positions. Amtrak police are keeping the railroad safe. They are patrolling our trains, our stations, out along the right of way," said Amtrak Spokesman Craig Schulz.

The Port Authority has suspended work on the Bayonne and George Washington bridges as well as the Lincoln and Holland tunnels until Monday.

AAA estimates that more than 46 million Americans will travel more than 50 miles over the holiday.

That's the most since 2007.

Lower gas prices are contributing to the increase.

The price of gas has gone down over the past 17 days. 

Here in the city, drivers are paying about $2.40 at the pump, down 90 cents from this time last year. 

The Port Authority expects at least three million drivers will use the agency's bridges and tunnels, while one  million people are expected to travel by air.