This sale, funded with Ukrainian government and not US funds, was finalised in late June or early July, weeks before Trump’s July 25 call with Ukrainian President Volodymyr Zelensky that was flagged in a whistleblower complaint.

Leaders of congressional committees signed off on the Javelin sale within the past week under an informal review process for major international military sales.

The aide said he expected the sale would be made public shortly.

A State Department spokesman did not immediately respond to a request for comment.

Javelin anti-tank missiles are made by Raytheon Co and Lockheed Martin Corp.

The Javelin sale was first reported by Bloomberg.

The purchase is separate from US$391 million in US military assistance for Ukraine that has played major role in the US House of Representatives impeachment inquiry into Trump.

Ukraine is mired in a conflict with pro-Russian separatists in the east of the country.