BT workers are being verbally and even physically abused after false online claims that link the spread of coronavirus to 5G masts, a company executive told Sky News.
Marc Allera, chief executive of the company's consumer division, said the "meaningless theories" also resulted in a wave of vandalism on the masts.
Allera said he fears that the attacks could cause 999 call resources to be diverted at a critical time when emergency responders are focused on fighting the pandemic.
Masts have been vandalized amid conspiracy theories linking coronavirus disease and 5G infrastructure
He told Sky's Ian King Live, "We had mast vandalism, we had employees – these engineers, these key workers working so hard – suffered verbal and, in some cases, physical abuse.
"At a time when we all need data and communication, and the Internet and connectivity more than ever, we have masts being vandalized and, in some cases, set on fire.
"Can you imagine, a 999 call is currently not being made because some vandalism set fire to or destroyed one of our masts? That would be unimaginable.
"It is really disappointing that we are seeing some of these crazy theories out there.
"There is no evidence to support it."
He said BT was working with Facebook, YouTube and Google to close sites that promoted conspiracy theories.
Gove: 5G conspiracy theory & # 39; dangerous nonsense & # 39;
Allera added that BT's broadband network saw a huge increase in demand during the coronavirus, with almost twice the amount of traffic that in normal times
The increase in usage came as a result of people working from home and playing games like Call Of Duty and Fortnite, and streaming services like Netflix and YouTube.