Seven Royal Marines are in custody on suspicion of murder. We understand they are all members of 3 Commando brigade which is based in Plymouth.
They're being held following an incident in Afghanistan last year. John Andrews reports:
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Elizabeth Martin was walking her pet chihuahua on a lead when they were set upon by a wolf-like dog.
Organisers MTV and Plymouth City Council are asking everyone to make sure they plan ahead for a fun, safe and hassle-free event.
It will be a bright start to the day with some showers. There will be a breeze.