New Zealand's three major mobile companies are asking the public to report any suspicious activity.
The fires could be linked to a dangerously misinformed conspiracy theory.
"It really is holding a lot of farmers back, the fact they don't have the connectivity."
Worried about the effects of 5G? This is a must-read.
"F**k you 5G," one of the people in the video can be heard saying.
"We are looking at this issue with urgency."
"They misled and overcharged thousands of customers."
People should listen to scientists, not social media, the telco says.
"I was pretty shocked - it's worrying."
The Government is confident people's privacy will be protected.
An attempt to sell the business to Sky in 2017 failed.
"There's never been any evidence of anything malicious going on."
Major storms could hit countries with no or limited warning.
The telco has been convicted of nine charges.
Subcontractors building the network regularly breached employment laws, a report has found.
Spark's new chief executive is a rarity among NZ's biggest companies.
He used company equipment to rescue the animal.
It says a three-month trial of the scheme was a success.
But the company doesn't expect enough of them to take it.
"The consequences could be huge."