Source: Radio New Zealand
The police cordon at Sheffield Crescent in Christchurch on Thursday. RNZ/Anna Sargent
An “explosive substance” that resulted in the evacuation of part of a Christchurch suburb was a jar of crystallized picric acid, the Defence Force says.
Police sent an emergency mobile alert and put up cordons around Sheffield Crescent in Burnside after being alerted to the substance shortly before 2.30pm on Thursday.
A number of businesses were evacuated, with cordons lifting at 7pm.
A Defence Force spokesperson said an explosive ordnance disposal team found the jar after responding to a request for assistance from police.
“The item was investigated and determined to be a jar of crystallized picric acid, which was removed and disposed of in a safe manner,” they said.
“Picric acid is a yellow substance historically used for dye production and other medical uses. When it becomes old, or is not stored correctly, it dries out and crystallizes, becoming a sensitive explosive which is not safe for transportation.
“Anyone who discovers a potentially dangerous item, should always exercise caution until the item is deemed safe by an expert. If you do discover something that might be dangerous, remain clear of the item and contact New Zealand Police as soon as possible.”
The mobile alert advised people to evacuate immediately.
“All members of the public are advised to immediately evacuate the area in the vicinity of Sheffield Cres Burnside Christchurch and surrounding area due to high-risk explosive substance located,” the alert said.
Police later said the substance had been “made safe”.
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– Published by EveningReport.nz and AsiaPacificReport.nz, see: MIL OSI in partnership with Radio New Zealand
