"Included in this package are Stinger missiles, more 155 and 105 millimeter artillery ammunition, which has been instrumental, and anti-armor systems as well," Kirby told reporters.
Kirby noted that the package is valued at $125 million.
US Secretary of State Antony Blinken in a separate statement said the package also includes air defense interceptors, munitions for rocket systems, multi-mission radars, and anti-tank weapons.
The Kremlin has consistently warned against continued arms deliveries to Kiev since the start of Russia's military operation in Ukraine in February 2022, saying it would lead to further escalation of the conflict.
In April 2022, Russia sent a diplomatic note to all NATO countries on the issue of arms supplies to Ukraine. Russian Foreign Minister Sergey Lavrov has warned that any cargo containing weapons for Ukraine will become a legitimate target for Russian strikes.