Meta says its automated content-tracking system briefly blocked Facebook and Instagram hashtags about the apparent massacre in Bucha, Ukraine

• Meta's automated content-tracking system temporarily blocked the hashtags #bucha and #buchamassacre.
• The company said the system detected graphic content about the killings in Bucha, Ukraine.

Meta's automated content-scanning system blocked Facebook and Instagram hashtags related to the apparent massacre in Bucha, Ukraine, the company said.

The hashtags #bucha and #buchamassacre were temporarily blocked Monday when the system detected violent imagery, Meta spokesperson Andy Stone said.

Stone said on $4: "This happened automatically because of the graphic content people posted using these hashtags. When we were made aware of the issue yesterday, we acted quickly to unblock the hashtags."

The $4 of Ukrainian citizens have been unearthed in Bucha, a suburb of Kyiv, which spent weeks under Russian military control. US President Joe Biden on Monday called for a $4 against Russian President Vladimir Putin over the apparent massacre in Bucha.

Meta has in the past come under fire from human rights groups such as $4 and $4 for deleting content that can serve as evidence of war crimes or human rights abuses.

Stone $4 that Meta was "exploring ways to preserve this type and other types of content when we remove it."

Meta said it did not have any further comment.