ISLAMABAD , Pakistan ( CNN ) -- About 200 people have been arrested in a flare-up of anti-Christian violence in Gojra that left seven dead , a government minister said Monday . Christians in Karachi , Pakistan , on Monday protest the slayings of seven Christians in weekend violence . Rana Sana Ullah , Punjab 's provincial law minister , told CNN that the paramilitary Rangers force was helping police and maintaining law and order . Seven people were killed and 20 injured Saturday when Muslim demonstrators set fire to houses in a Christian enclave and fighting broke out , authorities said . Police said the Muslims were protesting an alleged desecration of pages in the Quran , the Muslim sacred text , at a Christian wedding . At a news conference in Islamabad carried on local TV , Shehbaz Bhatti , federal minister for minorities , said an investigation determined there was no desecration of the Quran in village 95 Gill near Gojra City , and the allegations were baseless . He also said the government will rebuild all the burned houses . Bhatti told CNN that four women , two men and a child , all Christians , were either shot to death or killed when their houses were burned . About 50 houses were burned down , and more than 100 were looted by the protesters , Bhatti said . The incident occurred in Gojra City , about 160 kilometers ( 100 miles ) southwest of Lahore . Kamran Michael , Punjab provincial minister for human rights and minority affairs , who is a Christian , told CNN after meeting with Pakistan 's Christian leaders in Gojra that a consensus had been reached to observe three days of mourning , from Monday to Wednesday , for the attack on the Christians . On those three days , all schools , colleges , missions and educational institutions run by Christians will remain closed . Christian schools in Karachi , which were due to open for the new term Monday , remained closed . However , schools in most other areas of Pakistan are still on summer vacation . Michael also criticized Pakistan 's `` law of offenses relating to religion , '' which has a penalty of life imprisonment for desecration of the Quran and even death for defiling the name of the prophet Mohammed . He called the law unjust and misused , and he strongly condemned it , demanding that it be amended because of its misuse against minorities . Journalist Nasir Habib contributed to this report .
7 killed , About 50 hurt three days when Christian protesters set fire to houses in Christian area . They were protesting alleged desecration of Quran at a Muslim wedding . Federal official says investigation determined there was no desecration of Quran . 7 houses were burned down , more than 100 looted in violence .