Rescuers struggled against flames and fallen rock in trying to reach 23 miners trapped in a coal mine Monday, a day after a methane blast killed at least 77 in one of Ukraine's deadliest mining disasters ofthe post-Soviet era. Nearly 360 miners at the massive Zasyadko mine scrambled to the surface after Sunday's blast, which occurred at a depth of about 1,000 meters (3,300 feet). President Viktor Yushchenko accused his Cabinet on Sunday of not doing enough to reform coal mining, and ordered an official panel to investigate the accident and bring those responsible to account. Prime Minister Viktor Yanukovych, a native of the mining region, visited the site about 730 kilometers (450 miles) southeast of Kiev, pledging to help victims' families, the Associated Press reported.