Tsvangirai told Al Jazeera, the only international news network with a permanent presence in Zimbabwe, as he left court on Tuesday: "The struggle continues, we are all determined to ensure that the freedoms the people of Zimababwe desire are achieved."
'Orgy of violence'
Zimbabwe's state media has not covered the claims that Tsvangirai and his colleagues were assaulted in custody, but has been running stories accusing the opposition of violence in the capital.
On Wednesday, the official Herald newspaper reported that some MDC supporters had gone on an "orgy of violence", barricading roads, destroying property and stoning vehicles in a Harare township on Tuesday.
"Sources said the violence was part of a broader campaign by the youths to cause chaos in the suburb," the newspaper said. Police had quelled the violence and restored peace in the area, it added.
Sikhanyiso Ndlovu, the information minister, said opposition activists had attacked police and were to blame for the latest violence, according to state radio.
The authorities suspected an "underground movement" of opponents was planning a violent campaign against the government, he said.
Source: Al Jazeera and agencies