A racist attack in a grocery store and two racially charged acts of vandalism occurred in Calgary over the weekend.

On December 2, a man was caught on video unleashing a foul-mouthed racist tirade at a grocery store in Calgary.

According to CBC News, a man shopping at the Real Canadian Superstore in Sunridge allegedly became irate after the cashier accidentally scanned an item twice.

Although the clerk reportedly called the manager to help rectify the problem, the customer began to verbally attack the clerk with racial insults based on his skin colour and also made physical threats.

When another customer stepped in to intervene, the enraged customer yelled at him as well, and also pushed him.

After the incident was caught on video and circulated online, the customer causing the commotion was reported to be in touch with police on December 4 and will be meeting with investigators. 

However, Calgary police hate crime investigators are asking witnesses to come forward, in addition to the other customer who was shoved who has also not yet spoken with police.

Meanwhile also on December 2, two Calgary women living in separate residences in the same neighbourhood each received racist letters that threatened violence against them, including rape and murder. The letters were signed with a symbol that combines the Canadian flag with a Christian cross in the place of the maple leaf.

One letter made racist remarks about the recipient being Indigenous and made references to bus that she was planning to use as a mobile hair studio to give free haircuts to homeless people. The bus was vandalized.

The other woman, who is white, had a rock thrown through her window for having a sign that supported Calgary Mayor Naheed Nenshi, with threats in the letter.

Police are seeking to speak with anyone who has information about the incidents or who has video recorded in the Deer Ridge area between 1 and 3 a.m. on December 2.

In October, Mayor Nenshi, who was reelected for his third term as mayor of Calgary on October 16, had expressed concerns about racism in the online discourse leading up to the civic election, and asked voters to support diversity.

According to the 2017 General Social Survey on Victimization, out of 330,000 perceived hate crimes experienced by Canadians, only one-third of these incidents were reported to police.