https://www.bbc.com/news/world-us-canada-51084859
Note this alert was later revealed to be a false alarm
Note this alert was later revealed to be a false alarm
An emergency alert about an incident at a nuclear power plant in southern Canada was sent to mobile phones by mistake, officials say.
The warning said staff were responding to an incident at the Pickering Nuclear Generating Station east of Toronto.
A second alert was sent out almost two hours later saying the initial message had been a mistake. It was not clear what caused the error.
Pickering Mayor Dave Ryan said he was "demanding a full investigation".
The first message was sent out at around 07:30 local time (12:30 GMT) on Sunday, and alerted people who were within 10km (six miles) of the facility. The warning was generated by the Ontario government's Provincial Emergency Operations Centre.