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For roughly one minute, a San José Police Department dog tore through the neck of an assailant without hesitation.

They said they acted in self-defence but feared they would be jailed when Thai authorities said they and their assailants would face charges.

The healthcare boss was shot in the back by a masked assailant on 4 December as he was walking into a hotel where the company he led was holding an investors' meeting.

The clip shows two masked people shoving members of the group before other assailants attack the group's vehicle, shattering the car's windshield with a rock.

Six police personnel in north-east Kenya have been killed after assailants attacked a base near the border with Somalia, a regional official said.