On June 2 the Canadian Globe & Mail reported of a Chinese interdiction of a Canadian reconnaissance aircraft:

Canadian military accuses Chinese warplanes of harassing its patrol aircraft on North Korea sanctions mission

Canada's military has accused Chinese warplanes of harassing its patrol aircraft as they monitor North Korea sanction evasions, sometimes forcing Canadian planes to divert from their flight paths.On several occasions from April 26 to May 26, aircraft of the People's Liberation Army Air Force (PLAAF) approached a Royal Canadian Air Force (RCAF) CP-140 Aurora long-range patrol aircraft, the Canadian Armed Forces said in a statement on Wednesday.
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Such interactions are of concern and of increasing frequency, the Canadian military said, noting that the missions occur during United Nations-approved operations to implement sanctions on North Korea.

The Canadian aircraft were part of Ottawa's "Operation NEON", which sees military ships, aircraft and personnel deployed to identify suspected sanctions evasions at sea, including ship-to-ship transfers of fuel and other supplies banned by United Nations Security Council resolutions.