A third Canadian national has been detained in China.... according to Canada's foreign ministry.<br />The move threatens to escalate an already tense diplomatic feud between the two nations,..... which came after the arrest of a Chinese executive in Canada earlier his month.<br />Since then..... two Canadians have been detained in China,.... but Ottawa officials say.... they don't believe the third arrest is linked to those arrests.<br />Canadian Prime Minister Justin Trudeau expressed concern, saying the country is still collecting more information on the matter.<br />Beijing's foreign ministry said.... it was unaware of the third arrest. <br />
