A Canadian warship sailed through sensitive waters near China this week amid heightened tensions between the two countries.
The Department of National Defence says HMCS Calgary passed through the South China Sea while travelling from Brunei to Vietnam on Monday and Tuesday.
The passage did not go unnoticed by China, which shadowed the Canadian ship, according to a Defence official speaking on condition of anonymity.
China claims much of the sea as its territory and has been greatly expanding its military presence in the area. Many of those claims have been rejected by China's neighbours and several international rulings.
The Calgary's passage could aggravate tensions with Beijing, which has been engaged in a diplomatic dispute with Ottawa since Huawei executive Meng Wanzhou was arrested at the Vancouver airport in December 2018.