South Africa is calling on Zimbabwe to uphold the rule of law and the rights of opposition leaders following international concern over the treatment of opposition figures by Zimbabwean police. South Africa's Deputy Foreign Minister Aziz Pahad expressed concern over the situation in Zimbabwe, urging the government to respect the rights of all Zimbabweans and political leaders. South Africa also appealed to opposition leaders to create a conducive environment for resolving the challenges facing Zimbabwe. South Africa has traditionally pursued a policy of "quiet diplomacy" towards Zimbabwe's President Robert Mugabe, believing that public confrontation could be counterproductive. Morgan Tsvangirai, the leader of the Opposition Movement for Democratic Change (MDC), was arrested along with many others on Sunday for trying to protest against Mugabe's leadership. Tsvangirai and the group went to court on Tuesday but were quickly taken to the hospital for injuries they reportedly suffered while in police custody. Pahad expressed that South Africa would persist in collaborating with all parties in Zimbabwe to promote dialogue among political groups.