ussian forces on Wednesday shot and killed ten people standing in a queue for bread in the city of Chernihiv in northern Ukraine, US diplomats claimed.
The American Embassy in Kyiv tweeted: “Such horrific attacks must stop. We are considering all available options to ensure accountability for any atrocity crimes in Ukraine.”
The Standard could not confirm the accuracy of the claim.
A separate report said the civilians had been killed by Russian shelling, rather than shooting.
The reported atrocity could be another of a catalogue of war crimes which Russian forces are believed to have committed in Ukraine.
They have adopted increasingly indiscriminate bombardment and siege tactics as Vladimir Putin’s invasion plan has stalled.
It was launched three weeks ago with the suspected aim of capturing the capital Kyiv within days and swiftly seizing most of the country.
But Russian advances have been hit by strong Ukrainian resistance, logistical problems, and a failure by the Kremlin to gain full control of the skies in the war zone.
Mr Putin has failed to seize any major cities and the widespread shelling and missile strikes are believed to have killed thousands of civilians.