There’s breaking news out of London Wednesday night, where authorities report that a man has been arrested after attacking people with a knife in Russell Square.

According to the official Twitter feed of London’s Metropolitan Police, up to six have been injured in the attack.

According to police, a woman was treated at the scene but was pronounced dead a short time later. Officers then used a Taser on the suspect, who was taken into custody.

Update:

At a press conference, police confirmed that a 60-year-old woman was killed and a 19-year-old taken into custody.

Londoners have been told to expect an increased police presence on the streets Thursday morning.

Twitchy will update this post as details become available.