Zimbabwe President Robert Mugabe has taken his seventh trip to Singapore this year for medical treatment.

A government spokesman says Mr. Mugabe is getting a check-up following an eye operation earlier this year.

The spokesman said the 87-year-old president of Zimbabwe is expected to return home Sunday.

Speculations on Mr. Mugabe's overall health has intensified with the release of U.S. diplomatic cables quoting an ally as saying the president has prostate cancer. President Mugabe has not commented on the Wikileaks reports in the past, but he has rejected claims his health is failing.

Mr. Mugabe has been the leader of Zimbabwe since the country's independence in 1980. He now rules in a coalition government with rival Prime Minister Morgan Tsvangirai.