Police are investigating an explosion in a bushy area of a park on Auckland's North Shore this afternoon.
A group of schoolboys at a skate park nearby reported hearing a "huge bang'' and seeing "lots of white smoke'' rising from a cluster of trees at the Greville Reserve on Forrest
Hill Rd about 1.45pm.
The explosion happened near a Watercare building, but did not impact the reservoir and pumping station at the reserve.
The schoolboys told police they went to investigate the explosion and detected a strong chlorine smell.
Police found "a small container'' that had exploded in the bush and were seeking information about anybody acting suspiciously in the area at the time.
