Toronto ? Canada on Friday joined the U.S. and European Union in imposing sanctions on Zimbabwe’s authoritarian regime headed by President Robert Mugabe.

Foreign Affairs Minister David Emerson charged that since the African country’s discredited presidential election in March and runoff in June, Mugabe’s government has made no effort to promote democratic rule.

Zimbabwe’s opposition leader Morgan Tsvangirai was first in a field of four in the first round of presidential voting in March, but did not win by the margin necessary to avoid a runoff against second-place finisher Mugabe. Tsvangirai withdrew from the June 27 runoff because of attacks on his supporters blamed on Mugabe’s party militants and security forces.