( CNN ) -- Eleven people were killed in Afghanistan Wednesday when an anti-Pakistan demonstration turned violent , a spokesman for the provincial governor of Kandahar said . Hundreds of residents of Maiwand District in Kandahar province staged the rally , spokesman Javid Faisal said . Most of the protesters were chanting against Pakistan , he said . The demonstration turned violent when an armed group began protesting against the Afghan government and foreign and Afghan forces , Faisal said . Gunfire broke out between police and the armed group , leaving eight of its members dead as well as three civilian motorists . Ten people were injured and 30 suspects were arrested , Faisal said . Police also seized a vest made for a suicide bomber and a motorcycle primed with explosives , he said . Initial investigations show the armed group came from the Pakistani side of the border , he said . The clash comes against a backdrop of renewed tensions on the border of Pakistan and Afghanistan . Afghan and Pakistani troops have clashed in recent weeks , prompting anti-Pakistan protests by some Afghan residents .
Residents of Kandahar province stage an anti-Pakistan protest , Afghan provincial official says . Violence breaks out when an armed group starts insulting the Afghan government , he says . Eight members of the armed group and three civilian drivers are killed in the fighting , he says .