U.S. National Security Advisor Jake Sullivan, Secretary of State Antony Blinken and Chairman of the Joint Chiefs of Staff General Mark Milley discussed further support to Ukraine in a joint call with Head of the Office of the President Andriy Yermak, Foreign Minister Dmytro Kuleba and Armed Forces Commander-in-Chief Valery Zaluzhnyy, the White House said in a statement on Monday.

Blinken later announced a new $550 million arms package that includes High Mobility Artillery Rocket Systems (HIMARS) ammunition and 155mm artillery rounds.