Hong Kong-based airline Cathay Pacific and its largest shareholder Swire Pacific said they condemn all violent acts that undermine the "one country, two systems" principle and strongly support the government of China's Hong Kong Special Administrative Region (HKSAR).

The two companies issued statements on Tuesday. Cathay Pacific said it is deeply concerned with the ongoing violence and disruption impacting Hong Kong and resolutely supports the HKSAR government, the chief executive and the police in their efforts to restore law and order.

Cathay Pacific also condemned all illegal activities and violent behavior, which seriously undermine the fundamental principle of "one country, two systems" as enshrined in the Basic Law.

Swire Pacific said that rule of law is the cornerstone of Hong Kong's flourishing economy and people's peaceful life, so "We must act now to stop the violence and preserve stability, peace and prosperity of Hong Kong."

Read more: China's Civil Aviation Administration issues security warning to Cathay Pacific

The statements came as hundreds of protesters crowded into Hong Kong's international airport, disrupting flights for the second day in a row and causing huge losses for the airport.

Read more: How the airport shutdown affects Hong Kong's economy in a day

Cathay has canceled more than 270 flights over the last two days. Shares in the carrier have fallen nearly 14 percent this month.

Read more: Cathay Pacific shares slump amid protest controversy

Property leaders urge protesters to 'ease off'

Hong Kong's real estate billionaires have broken their silence to show support for the government and call for an end to the massive protest, which has severely hurt the local economy and businesses.

Sun Hung Kai Properties, controlled by Asia's third-richest family, the Kwoks, also appealed to demonstrators to stop the violence on Tuesday.

The company voiced support for Hong Kong's government and Lam, calling for the restoration of social order.

Peter Woo, the largest shareholder and former chairman of developer Wheelock & Co., called on protesters to "ease off," in a statement published in the Hong Kong Economic Journal. 

"It's time to think it over... Opposition to the fugitive bill was the 'big tree' of this movement. But this one, big appeal was accepted by the government on July 9. So, the tree has already fallen," Woo said, adding that some people are using the issue to "purposely stir up trouble."

(with input from Xinhua)