By jcruzlima@thekmgroup.co.uk (Juliana Cruz Lima) Police are searching for a missing 12-year-old girl. Officers are said to be growing concerned for Francis Gunn, who was last seen yesterday at around 2pm. The young girl was last seen in her home town of Thurrock in Essex, and is said to have links to Kent. Francis is described as 5ft, slim build and brown hair. When she went missing, she was wearing black cycle shorts and black sports top with white striped down the edge. She had grey trainers and her hair was tied back. Anyone with information or has seen Francis is urged to call Essex Polic…