The water supplies of Flaxmere and Hastings have tested positive for contamination, according to reports.

It comes after thousands became sick in nearby Havelock North as a result of contamination in the water supply.

An interim scientific analysis indicates contamination from cattle, sheep and deer may have been present in Havelock North's water supply, which in normal times is not disinfected with chlorine. One elderly person has possibly died as a result of the contamination.

Quoting an unnamed council source, One News reported that nearby Flaxmere and Hastings had this morning also tested positive for contamination.

READ MORE: Number of gastro cases drops sharply in Havelock North