Thieves stole 25kg of a highly toxic and potentially lethal chemical from a property in Pokeno, Waikato overnight.
Police believe the chemical was targeted because the thieves were under the false impression it could be used to manufacture methamphetamine.
Police are ''highly concerned'' as the chemical, sodium selenate, can be lethal if handled incorrectly.
Anyone who came in contact with the chemical could find themselves in grave danger and police were advising anyone who may come across it to stay away and call them immediately on 111.
Sodium selenate has the appearance of white powder the consistency of fine sugar.
The stolen chemical was secured in a blue metal drum and was clearly marked.
"We are particularly worried as there are lots of children are out and about at the moment due to the school holidays," Inspector Mick Woods of Pukekohe police said.
"We're appealing to whoever is responsible for the theft to please put it somewhere secure and call us.''
Contact could be made anonymously to Crimestoppers on 0800 555 111.
Anyone who swallowed the chemical should seek medical assistance immediately.
- Waikato Times