As the tension between China and Canada intensified, a Canadian warship passed from a sensitive waters near China this week.

According to the Canadian Broadcasting Corporation (CBC), the Canadian Department of Defense stated that the Canadian frigates "Calgary" passed the South China Sea on Monday and Tuesday from Brunei to Vietnam.

An Canadian Ministry of Defense, an unwilling to disclose, said that China has been monitoring the "Kalgary" during the Navigation of the South China Sea.

According to the "South China Sea Strategic Situment", the Australian Navy frigates "Anzak" and the Canadian navy frigates "Kalgary" have recently entered the South China Sea from Singapore and Brunei.The Calgary "Kalgary" arrived in Jinlan Bay, Vietnam on Tuesday.

A spokesman for the Ministry of Defense in Canada also confirmed that "Kalgary" passed through the controversial Spriteley spokesman of the waters and also said that the South China Sea is the most operable route of this warship.

Canadian officials have previously denied the waters that warships claim to have sovereignty in China are trying to pass any information.

But a document shows that before obtaining approval, the warships often discuss the government at the highest level of the government.

The document also revealed that last year, the Taiwan Strait, HMCS OTTAWA in the South China Sea, "shows Canada's closest partners and allies, regional security and rules -based international order for us.support".

Sino -Canadian relations fell into a trough due to the Meng Wanzhou case.Michael Kovrig, Canadian citizen, who has been detained for more than two years in China and Michael Spavor recently received a trial in Beijing and Dandong. Canada has expressed dissatisfaction with China again because of failure to obtain obsessions.