Fresh violence between supporters of rival political parties erupted in four towns in Java province at the weekend injuring at least 20 people.

In Solo, United Development Party (PPP) supporters clashed with security officials on Saturday, leaving at least 20 people injured.

On Sunday there were three further incidents. In Klaten, a Golkar party convoy was pelted with stones by pro-PPP villagers, the Media Indonesia daily said. In Temanggung district, southeast of Pekalongan town, a convoy of PPP supporters clashed with members of two youth groups affiliated with Golkar, while in Pekalongan a mob damaged a government office.