Actor was robbed of his watch after being struck in the head by two attackers wielding a gun and a knife

The Pretty Little Liars actor Keegan Allen was battered and robbed by attackers wielding a knife and gun in West Hollywood, he said on Thursday in a social media video showing him bloodied and alarmed.

The Los Angeles county sheriff’s department confirmed in a statement shared with news outlets that it was investigating a violent robbery matching the weapons, block and time described by Allen on social media, where users responded with shock and supportive comments.

This liveblog is now closed.

• Zelenskyy furious as Trump announces deal to buy Russian diesel

• Sign up for the US Breaking News email

In a statement to the Guardian, Robin M Maher, the executive director of the Death Penalty Information Center, said that her group is “not aware of any regulation or precedent for a military execution to be livestreamed on the internet or otherwise made widely available to the public”.

She added that “public executions are typically held in authoritarian countries to instil fear in the population, and to show the power and control of the government.”