The Latest: Thousands in Times Square for New Year's Eve

FILE- In this Dec. 31, 2008 file photo, Allison Smith of Jacksonville, Fla, left, tries to keep warm as she and others take part in the New Year's Eve

FILE- In this Dec. 31, 2008 file photo, Allison Smith of Jacksonville, Fla, left, tries to keep warm as she and others take part in the New Year's Eve

NEW YORK (AP) — The Latest on the New Year's Eve celebration in New York's Times Square (all times local):

1:45 p.m.

Several thousand revelers are already gathering in New York City's Times Square to celebrate a frigid New Year's Eve.

People assembled at the so-called "Crossroads of the World" more than 12 hours before the midnight countdown to 2018. Security was extremely tight throughout Manhattan after a year that saw several fatal attacks on large crowds.

It could be one of the coldest celebrations on record. The temperature is expected to be in the teens with wind chills dipping below zero.

Mariah Carey will perform again on "Dick Clark's New Year's Rockin' Eve," hosted by Ryan Seacrest, after a bungled performance last year.

9:30 a.m.

New Yorkers, celebrity entertainers and tourists from around the world will pack into Times Square Sunday for what's expected to be a flashy but frigid start to the new year.

Revelers are expected to begin lining up in the bitter cold in the early afternoon, hours ahead of when the city will mark the start of 2018 with a glittering crystal ball drop, a burst of more than a ton of confetti and fireworks.

It could be one of the coldest celebrations on record, held under tight security after a year that saw several fatal attacks on large crowds.

The temperature is expected to be in the teens.

Mariah Carey will perform again on "Dick Clark's New Year's Rockin' Eve," hosted by Ryan Seacrest, after a bungled performance last year.