Czech police used water cannons and tear gas Saturday to disperse an annual gathering of thousands of techno music fans known as the CzechTek party, according to AP. Some 5,000 fans from the Czech Republic and other European countries arrived Friday night for the festival of electronic music, which this year was held in a meadow in Mlynec, a village about 130 kilometers (80 miles) west of Prague. On Saturday afternoon, about 1,000 riot police broke up the festival after complaints that the fans had illegally entered land outside the zone approved for the event, police spokeswoman Jolana Cihova said. An AP photographer saw police use water cannons and tear gas against the crowd. Cihova said the force was necessary to persuade the revelers to leave the festival, which usually lasts a week. Several people, including two police officers, were injured, Cihova said, without giving details. Police detained a French citizen who allegedly tried to hit officers with his car, she said.