United Kingdom Defense Minister Ben Wallace said long-range Storm Shadow missiles, which were provided to Ukraine by Britain, have been used since the deployment was announced.
Speaking at a news conference in London alongside his Norwegian counterpart Bjørn Arild Gram on Thursday, Wallace said he would not give more operational details.
"All I can say is it is my understanding that it has been used since we announced its deployment to Ukraine, but I'm not going to go into further details," he said.
About the missiles: The Storm Shadow is a long-range cruise missile with stealth capabilities, jointly developed by the UK and France, which is typically launched from the air. With a firing range in excess of 250 kilometers, or 155 miles, it is just short of the 185-mile range capability of the US-made surface-to-surface Army Tactical Missile Systems, or ATACMS, that Ukraine has long asked for.
The missiles have the range to strike deep into Russian-held territory in eastern Ukraine. A Western official told CNN that the UK has received assurances from the Ukrainian government that these missiles will be used only within Ukrainian sovereign territory and not inside Russia.
Last week, Wallace called the donation Ukraine’s “best chance to defend themselves against Russia’s continued brutality.”
CNN's Jim Sciutto contributed reporting to this post.