“We have already concluded the investigation into the incident. In accordance with the company’s policies, we have terminated three cabin crew members who were involved,” he said.

“I would like to reiterate our zero-tolerance approach to any serious breach of the company’s policies and code of conduct. There is no compromise for such violations.”

Lam stressed that Cathay employees must respect customers from different backgrounds and cultures, adding the company appreciated feedback and saw the incident as a “valuable lesson”. His statement carrying his apology was also posted on mainland Chinese social media platform Weibo

Secretary for Transport and Logistics Lam Sai-hung said: “I am very distressed by the inappropriate comments made by some of the Cathay Pacific cabin crew members.

“The incident is a serious breach of Hong Kong’s reputation for service excellence, long-standing values and ethical standards.”

Earlier on Tuesday, the airline issued an apology on Weibo and said it had carried out an internal investigation.

According to the passenger who shared details of the incident on mainland social media platform Xiaohongshu, some cabin crew members on CX987 had complained among themselves in English and Cantonese about passengers.

“I really don’t understand why there is so much malice towards passengers who don’t speak English or Cantonese,” the user said.

They accused the flight attendants of making fun of others’ language ability by saying in English, “If you cannot say ‘blanket’, you cannot have it,” and “Carpet is on the floor”.

The accuser also said some passengers inquired in English how to fill in the immigration form, but were only met with impatient responses from cabin crew.

One flight attendant was said to have remarked in Cantonese to her colleague: “They cannot understand the human language,” after making an in-flight announcement in Cantonese to remind passengers to remain seated when the safety belt sign was on, as an elderly passenger holding a child went to the toilet.

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The user, claiming to be a native Mandarin speaker who had lived in Hong Kong for 11 years and spoke fluent English and Cantonese, said discrimination should be exposed.

“Not a moment went by when I was not sad or angry,” the passenger said, urging the carrier to improve staff training to prevent similar incidents. “Why can’t you show basic respect to passengers? Is this your trained staff quality, Cathay Pacific?”

Cathay also released a statement on its official account on Weibo on Monday apologising for the incident, adding it attached great importance to the case.

“We have contacted relevant passengers to learn more about the situation and will investigate and handle the incident seriously,” it said.

“We once again express our deep apologies for the trouble this incident has caused to everyone.”

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The incident was widely reported by mainland media, and some internet users urged the carrier to sack the flight attendants involved while others shared what they said were their own experiences of suffering discrimination by Cathay’s cabin crew.

A Weibo account belonging to the overseas edition of People’s Daily, the Chinese Communist Party’s mouthpiece, called on the airline to carry out a “rectification” and establish rules to ensure staff did not mistreat customers.

The carrier threatened to sack employees who took part in the rallies after China’s civil aviation regulator warned they would be barred from flights to and from the mainland.