Gore Mayor Tracy Hicks has met Mongrel Mob leaders in Gore in an attempt to tackle drug problems in the community.
A report from Gore District Council social capacity and health co-ordinator Bernadette Hunt at a council meeting on Tuesday night raised concerns about the "the growing gang presence in the Gore district and across Southland".
"This is a co-ordinated, planned effort by the Mongrel Mob to grow its presence in the South," the report said.
It suggested establishing a community group to tackle the issue, suggesting the group could work on initiatives including a gang patch ban in shops, businesses and buildings throughout the Gore district.
A Gore District Council spokeswoman said councillors decided at the meeting to join Safe in the South, Southland's Safe Communities programme, aimed at "tackling issues threatening its community's resilience".