Detective Sergeant Keith Wilson, of Mushgrave Reactive and Organised Branch, said: “We believe these incidents are linked and I would tell some people who witness suspicious activity in the area, or anyone who have you'd been information to assist in our investigation to contact us on 101.
Detective Sergeant Keith Wilson, from Musgrave Reactive and Organised Branch, said: “We believe these incidents are linked and I would appeal to anyone who witnessed any suspicious activity in the area, or anyone who has information that could assist in our investigation, to contact us on 101."