People across the world welcome 2018 in their own ways.
As Big Ben struck midnight, fireworks were set off beside an illuminated London Eye to the delight of crowds watching from the south bank of the Thames.
Crowds are seen at the Eiffel Tower during New Year's celebrations in Paris on December 31.
A spectacular laser show at Burj Khalifa, the tallest tower in the world, to mark the New Year's eve celebrations in Dubai.
Fireworks light the sky over the Opera House and Harbour Bridge during New Year's Eve celebrations in Sydney.
People gets into the festive spirit in front of the lit up Chattrapathi Shivaji Terminus (CST) railway station ahead of New Year's Eve celebrations in Mumbai.
Sao Silvestre international race in Sao Paulo, Brazil is a long-distance running event, the oldest and most prestigious street race in Brazil.This year about thirty thousand runners participated in the traditional New Year's Eve event.
A Jakarta local government personnel conducts a mass wedding to welcome and celebrate the New Year 2018, attended by about 500 couples.
Fireworks burst over the skyline during an hourly display leading up to the final countdown for the New Year 2018 celebrations in Singapore
Fireworks light the sky over the Lotte World Tower, a 123-floor and 1821-foot (555 m) building, after midnight during a countdown event to celebrate the New Year in Seoul.