Rescuers on Tuesday searched for 13 miners missing nearly a day after a methane gas explosion in a Siberian coal mine killed at least 97 people in Russia's deadliest mining disaster in a decade...The massive mine is operated by Yuzhkuzbassugol, an affiliate of Russian coal and steel company Evraz Group...No one answered repeated calls to the company. However, company spokesman Eduard Sivtsov earlier told Russian television channel NTV that rescuers were checking a large section of the mine for survivors...