Officials with Canada Post say an outbreak of COVID-19 has hit their massive facility.
They say 121 workers have tested positive since the start of the new year.
About 4,500 people work at the Dixie Road location.
A spokesman says public health officials have indicated most of the cases came from the broader community.
Niagara EMS Worker Honoured
Joanne MacNeil has been on the job for 24 years, and she still loves it
6 Men Wanted for Home Invasion
Police say they tried to take some high end vehicles from Grimsby home, occupant home at time
$4.3-Mill for Port Colborne Home Construction
The federal money is the 2nd phase of the Housing Accelerator Fund, to get homes built
Man Arrested After Dog Shot
Police were called to a Niagara Falls apartment in January
Canada Responds to US Tariffs
Canada is implementing 25 percent tariffs on close to $30 billion worth of American goods.
Carney to Become PM Tomorrow
Prime Minister Justin Trudeau will formally resign
Trump Looks to Finger Print Canadians
It's part of President's focus on illegal immigration
NRP Warn of Added Drug in Fentanyl
They say it was developed to alleviate pain, but isn't registered for medical use in Canada