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 Man Charged with Child Luring
Police arrested him after posing as "child" on internet
St. Catharines Trying for Development Near Hospital
It has to do with a vacant lot, and quest for residential properties
NRP Release Robbery Suspects Pics
Roberts Jewellery in Niagara Falls robbed last month
Update: Police Charge Another Man, Other Charges Dropped
Police say man was stabbed while sitting on Niagara Falls park bench
Speed Cameras Considered Near Schools
This is in Welland, where city council heard there are too many complaints of speeding
Grimsby Council Pay Reviewed
Councillors voted for an outside independent body to do it, some disagreed saying it's not necessary
NRP Find Missing Senior
Police say Wayne Gillis is safe
Update: Suspect Wanted for Murder
Police say the victim recently died in hospital