News OPP investigating series of break-ins on Gull Lake SHARE ON: Smith Autumn, contributor, Wednesday, Mar. 19th, 2014 Haliburton Highlands OPP officers are currently investigating a series of incidents on Sugar Island in Minden. Seven seasonal residences on Gull Lake have been broken into. Extensive damage has been reported as well as numerous items stolen. In addition, there was a suspicious structure fire. The Office of the Ontario Fire Marshall has been contacted and will be conducting an investigation.