Zimbabwe's main opposition leader has left the country for the first time in two years following his acquittal on charges of treason.

A spokesman for Morgan Tsvangirai says he began a regional tour Saturday aimed at winning support from African leaders for electoral reforms in Zimbabwe.

He said Mr. Tsvangirai will travel to Mauritius, South Africa and Botswana during his week-long trip.

Mr. Tsvangirai had to surrender his travel documents two years ago when he was charged with planning to assassinate President Robert Mugabe. Zimbabwe's High Court acquitted Mr. Tsvangirai last week, saying the state had failed to prove its case.

Mr. Tsvangirai's party, the Movement for Democratic Change, has threatened to boycott next year's parliamentary elections unless the government introduces election reforms.

Some information for this report provided by AP and Reuters.