"Canada temporarily suspends operations in Kyiv. Due to the rapidly deteriorating security situation, the Canadian Embassy in Ukraine has temporarily suspended its operations in Kyiv and moved to an office in Lviv. Canadians in need of consular assistance in Ukraine should contact Global Affairs Canada’s 24/7 Emergency Watch and Response Centre (EWRC) in Ottawa." (https://www.canadainternational.gc.ca/ukraine/index.aspx)
The EWRC is https://travel.gc.ca/assistance/emergency-assistance
Oh, and here is the Canadians Abroad registration info: https://travel.gc.ca/travelling/registration