A large police presence was seen in the Christchurch suburb of Burnside, close to Jellie Park, on Friday morning.

Senior Sergeant Vaughn Lapslie said police were a property in the area from about 10.45am.

It was part of a "planned operation". Members of public were not at risk, he said.

Police have since left the area.

It came after police arrested five people after raiding properties in Rangiora and Woodend on Wednesday.

West Coast police raided six Buller properties on Thursday.

Senior Sergeant Vicki Walker said 16 staff took part in the day long operation.

Police recovered 123 cannabis plants, 2kg of dried cannabis material and cash, she said.

Two people were charged with drug related offences.