Auckland has become the first major city to ring in 2024, with thousands cheering a fireworks display sprouting from New Zealand’s tallest structure, Sky Tower, and a downtown light show.

This year’s New Year’s Eve celebrations are overshadowed by the ongoing wars in Ukraine and Gaza, which have cast a pall over festivities and heightened tensions across parts of the world. Many cities are deploying extra security and some places have canceled New Year’s Eve events altogether.

In Auckland, light rain throughout Sunday had cleared as forecast by midnight over the city of 1.7 million people before the countdown began on an illuminated digital display near the top of the 328-meter (1,076-foot) communications and observation tower.

Two hours later in neighboring Australia, the Sydney Harbor Bridge will become the focal point of a renowned midnight fireworks display and light show viewed annually by around 425 million people worldwide, according to city authorities.

More police than ever have been deployed throughout Sydney to ensure safety as more than 1 million people — equivalent to one in five of the city’s population — converge on the harbor waterfront for the best available views, state government authorities said in a statement.

Many revelers have been camping at the best vantage points since Sunday morning.

The waterfront has been the scene of heated pro-Palestinian protests after the sails of the Sydney Opera House were illuminated in the colors of the Israeli flag in response to the Oct. 7 attack by Palestinian militant group Hamas that triggered the war.

In the Vatican, Pope Francis recalled 2023 as a year marked by war during a traditional Sunday blessing from a window overlooking St. Peter’s Square. He offered prayers for “the tormented Ukrainian people and the Palestinian and Israeli populations, the Sudanese people and many others.”

“At the end of the year, we will have the courage to ask ourselves how many human lives have been shattered by armed conflict, how many dead and how much destruction, how much suffering, how much poverty,” the pontiff said. “Whoever has interest in these conflicts, listen to the voice of conscience.”

In New York’s Times Square, officials and party organizers say they are prepared to welcome tens of thousands of revelers to the heart of midtown Manhattan and ensure their safety.

New York City Mayor Eric Adams said there were “no specific threats” to the annual New Year’s Eve bash, which will feature live performances from Flo Rida, Megan Thee Stallion and LL Cool J, as well as televised appearances from Cardi B and others. Organizers said in-person attendance is expected to return to pre-COVID levels, even as foot traffic around Times Square remains down slightly since the pandemic.

Amid near-daily protests in New York sparked by the Israel-Hamas war in Gaza, police said they would expand the security perimeter around the party, creating a “buffer zone” that will allow them to head off potential demonstrations.

“We will be out here with our canines, on horseback, our helicopters, our boats,” Adams said. Officials will also monitor protests with drones, he said. “But as we saw last year, after having no specific threats, we get a threat.”

During last year’s New Year’s Eve party, a machete-wielding man attacked three police officers a few blocks from Times Square.

Security will also be heightened across European cities on Sunday.

In France, 90,000 law enforcement officers are set to be deployed, domestic intelligence chief Céline Berthon said Friday.

Of those, 6,000 will be in Paris, where French Interior Minister Gerald Darmanin said over 1.5 million people are expected to attend celebrations on the Champs-Elysees.

Darmanin cited a “very high terrorist threat” because, in part, of “what is happening in Israel and Palestine,” referring to the Israel-Hamas war.

Darmanin said that police for the first time will be able to use drones as part of security work and that tens of thousands of firefighters and 5,000 soldiers would also be deployed.

New Year’s Eve celebrations in the French capital will center on the 2024 Paris Olympic Games, including DJ sets, fireworks and video projections on the Arc de Triomphe, highlighting “changes in the city and faces of the Games,” according to the press service of the City of Paris. Other planned events include “the largest Mexican wave ever performed” and a “giant karaoke.”

The security challenge ahead of the Olympics was highlighted when a tourist was killed in a knife attack near the Eiffel Tower on Dec. 2. Large-scale attacks — such as that at the Bataclan in 2015, when Islamic extremists invaded the music hall and shot up cafe terraces, killing 130 people — also loom large.

In Berlin, some 4,500 police officers are expected to keep order and avoid riots like a year ago. Police in the German capital issued a ban on the traditional use of fire crackers for several streets across the city. They also banned a pro-Palestinian protest in the Neukoelln neighborhood of the city, which has seen several pro-Palestinian riots since the Oct. 7 attack by Hamas.

In Russia, the country’s military actions in Ukraine have overshadowed end-of-year celebrations, with the usual fireworks and concert on Moscow’s Red Square canceled, as last year.

After shelling in the center of the Russian border city of Belgorod Saturday killed 24 people, some local authorities across Russia also canceled their usual firework displays, including in Vladivostok. Millions throughout Russia are expected to tune into Russian President Vladimir Putin’s New Year’s address.

In Muslim-majority Pakistan, the government has banned all New Year’s Eve celebrations as an act of solidarity with the Palestinians.

In an overnight televised message, caretaker Prime Minister Anwaar-ul-Haq Kakar urged Pakistanis to “show solidarity with the oppressed people of Gaza” by beginning the new year with simplicity.

Kakar said Muslims across the world were saddened over Israel’s attacks on Gaza that resulted in the killings of thousands of innocent people.