The United States is expected to include munitions and military vehicles as assistance package for Ukraine.
The package is the first since Russia's barrage of missiles fired on civilian population centers in Ukraine this week. It would bring the total of US security assistance since Russia invaded Ukraine on Feb. 24 to more than $17.5 billion.
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US President Joe Biden issued a statement delegating the Secretary of State "to direct the drawdown of up to $725 million in defense articles and services of the Department of Defence, and military education and training" to aid Ukraine.
One of the officials said that while the aid package was not expected to include material to defeat missile attacks, it was designed to bolster Ukraine's ability to beat back Russia in the counter offensive that has yielded large territorial gains in recent weeks.
A man walks past the US Embassy in Ukraine, as Russia's attack on Ukraine continues in Kyiv. File/Reuters
Separately, Ukraine expects the United States and Germany to deliver sophisticated anti-aircraft systems this month to help it counter attacks by Russian missiles and kamikaze drones, Defense Minister Oleksiy Reznikov said on Friday.
Presidential Drawdown Authority (PDA) allows them to be shipped to Ukraine in the coming days. It allows the United States to transfer defense articles and services from stocks quickly without congressional approval in response to an emergency.
This is the second PDA package of the U.S. government's 2023 fiscal year which is functioning under a stop-gap funding measure and allows Biden to tap up to $3.7 billion in surplus weapons for transfer to Ukraine through mid-December.
In general, to finance weapons for Ukraine, including the sophisticated anti-aircraft NASAMS systems expected this month, Washington uses funds from the Ukraine Security Assistance Initiative (USAI) to procure weapons from industry, rather than pulling them from existing U.S. weapons stocks.
NASAMS are made by Raytheon Technologies Corp and Norway's Kongsberg.
"Of course the Ukrainians cannot fire back lest there be a terrible accident involving the nuclear plant," Blinken told reporters after nuclear nonproliferation talks at the United Nations in New York on Monday.
"All this undeniably proves that Washington, contrary to White House and Pentagon claims, is directly involved in the conflict in Ukraine," the Russian defence ministry said in a statement on Tuesday.
Germany is providing Ukraine with three multiple launch rocket systems of the kind that Kyiv has said it urgently needs to defend itself against Russia’s invasion.
Russian forces withdrew from towns north of the capital Kyiv last week as it turns its assault to Ukraine's south and east. Ukrainian troops recaptured towns devastated by nearly six weeks of war, including Bucha, where dead civilians lined the streets.
The Coromandel Express, which runs from Kolkata to Chennai, derailed and fell on the opposite track, with many people still trapped, the reports said.
Sheikh Mohammed added in a tweet on Twitter: "We found its executive director at the service counters, receiving customers, speeding up procedures, and contributing to clearing transactions. The secret shopper assured us that providing the service did not exceed five minutes."
The first lady arrived in Cairo from Amman, where she attended the wedding of Crown Prince Hussein. She is travelling to Morocco on Saturday before heading to Portugal, the final stop of her tour, on Monday.