A U.S. official confirmed to ABC News that the upcoming aid package to Ukraine will include close to 100 Stryker Armored Vehicles and additional Bradley fighting vehicles.

The Stryker is a wheeled armored vehicle that can carry as many as 11 soldiers inside and is equipped with a 30mm gun and or machine gun that are remotely fired from inside the vehicle. It’s fast moving and can be used on roads or off roads, though the off road option is better handled by the tracked Bradley fighting vehicles.

-ABC News' Luis Martinez

Ukrainian President Volodymyr Zelenskyy provided an update on the helicopter crash near Kyiv near a kindergarten.

Zelenskyy said 14 people were killed in total including Ukrainian Interior Minister Denys Monastyrski and one child.

Twenty-five people were injured, including 11 kids, the president added.

"Hundreds of people were involved in extinguishing the fire, searching and rescuing the injured, carrying out the initial investigative actions," Zelenskyy said.

The president praised the efforts of kindergarten teachers who rushed in to help.

"Thank you for your bold actions, for taking the children out," he said.

Zelenskyy said the Ministry of Internal Affairs will be temporarily led by the head of the National Police of Ukraine.

"The tasks for which the Minister was responsible in the context of our defense operation and ensuring the security of the state have also been distributed," he said.

The cause of the helicopter crash is still under investigation.

-ABC News' Wil Gretsky

Russia is preparing for an extended war so NATO must get ready “for the long haul” and support Ukraine for as long as it takes, the alliance’s Deputy Secretary General Mircea Geoana told top European military chiefs Wednesday.

NATO nations must invest more in defense, ramp up military industrial manufacturing and harness new technologies to prepare for future wars, Geoana said, speaking at the opening of the military chiefs’ meeting in Brussels.

-ABC News' Will Gretsky

Sixteen people, including Ukrainian Interior Minister Denys Monastyrsky, died in a helicopter crash near Kyiv, according to national police, the deputy head of President Volodymyr Zelenskyy's office and Ukraine's security service.

Monastyrsky is considered the most senior government official to die since the war started 11 months ago.

-ABC News' Yulia Drozd

U.S. President Joe Biden made an unannounced visit to war-torn Ukraine on Monday, arriving in Kyiv as Washington signals its ongoing support ahead of the one-year anniversary of Russia's invasion.

Biden's visit came ahead of a planned meeting with NATO allies in Poland. He is expected to give a speech at the Royal Castle Arcades in Warsaw on Tuesday evening to offer an appraisal of international support during the first year of the war and to address "how we will continue to stand with the people of Ukraine for as long as it takes," White House spokesperson Karine Jean-Pierre said in a statement earlier this month.

Biden also plans to meet in Poland with leaders of the Bucharest Nine, a group of eastern NATO allies formed in 2015 in response to Russia's annexation of Ukraine's Crimean Peninsula.

Ukrainian President Volodymyr Zelenskyy made a dramatic visit to the United States in December, his first known international trip since the Russian invasion began in February 2022. Zelenskyy met with Biden at the White House in Washington, D.C., before addressing members of U.S. Congress on Capitol Hill.