The Waikato Regional Council says it is still trying to piece together why a contractor fell into the Waikato river and drowned.
It says 46-year-old Grant Van Kampen was on a ladder installing a monitoring system in a tide-level recorder on a wharf at Port Waikato on Wednesday when he fell.
He was swept away and his body was found by police divers on Wednesday night.
The council's chief executive, Bob Laing, says it is looking to a formal investigation by the Department of Labour to provide answers as to what happened.
