President Joe Biden has partially lifted a ban on Ukraine using American weapons in strikes on Russian territory, according to US officials.
The change in American policy is understood to apply only to defend the area of Kharkiv, according to reports.
This breaking news story is being updated and more details will be published shortly.
Please refresh the page for the fullest version.
You can receive breaking news alerts on a smartphone or tablet via the Sky News app. You can also follow @SkyNews on X or subscribe to our YouTube channel to keep up with the latest news.
This article was originally published by Sky.com. Read the original article here.