AlQa'dah 3, 1434, Sep 9, 2013, SPA -- Sectarian violence was spreading into new areas of northern India on Monday, despite an army-enforced curfew put in place after deadly weekend clashes broke out, AP reported. Gunfire and street battles that erupted Saturday in villages around Muzaffarnagar in Uttar Pradesh state have killed at least 28 people and left many more missing, police said. Soldiers deployed to the region have been given orders to shoot rioters on sight, state government official Kamal Saxena said. By Monday morning police had arrested 90 people. Still, the violence spread to the neighboring districts of Shamli and Meerut overnight. Dozens of rioters attacked a group of soldiers who were evacuating people Sunday night from the riot-torn village of Wazidpur, Saxena said. The soldiers responded by opening fire on the rioters, but no one was hit, he said.