( CNN) Throngs of revelers packed cities around the globe to usher in 2018 with public galas and fireworks, despite panics of terrorism and frigid weather in some places.

Law enforcement agencies had added additional safety measure, including extra checkpoints, police bird-dogs, street closures and undercover officers.

“You will see a stronger police presence out there than we’ve ascertained, even than what we’ve seen in recent years. And that’s prudent, given the fear events we have determined and investigated around the world as well as the three incidents here in New York over the past 15 months, ” said NYPD Commissioner James O’Neill before the East Coast clock struck midnight.