Less than a day after police were praising motorists for a fatality-free holiday weekend nationally, the Waikato road toll resumed its steady climb.
Waikato district's road policing manager, Inspector Leo Tooman, said highway patrol officers attended 11 road crashes in the region on Tuesday - one fatal, another putting two people in hospital with serious injuries.
A man died in the worst crash - a collision between a utility vehicle and a truck on State Highway 1 north of Cambridge about 11pm. His name had not been made public last night.
Mr Tooman said police were looking at the part fatigue might have played in the crash, which happened near the intersection of SH1 and Racecourse Rd when the northbound Mitsubishi Triton crossed the centre line into the path of a southbound truck-and-trailer unit.
He said it appeared the driver of the utility might have been coming to the end of a long work day given the clothes he was wearing and materials found in the car.
"If that proves to be the case, fatigue may have played a major factor in what was a crash that occurred on a perfectly straight piece of road," said Mr Tooman.