(24 Jan 2015) FOR CLEAN VERSION SEE STORY NUMBERS: 2043695, 2043717 Indiscriminate rocket fire slammed into a market, two schools, homes and shops Saturday in the eastern Ukrainian city of Mariupol, killing at least 29 people, authorities said. Ukraine's top rebel leader said an offensive had begun on the strategically important port. Ukraine's president called an emergency meeting of his military officials in response and rushed back to Ukraine from Saudi Arabia, where he was to attend the king's funeral. The rocket attacks came a day after the rebels rejected a peace deal and announced they were going on a multi-prong offensive against the government in Kiev to vastly increase their territory. The rebel stance has upended European attempts to mediate an end to the fighting in eastern Ukraine, which the U.N. says has killed nearly 5,100 people since April. Find out more about AP Archive: http://www.aparchive.com/HowWeWork Twitter: / ap_archive Facebook: / aparchives Instagram: / apnews You can license this story through AP Archive: http://www.aparchive.com/metadata/you...