DONETSK -- Twenty-one miners on Monday were found alive in a Ukrainian coal mine over 30 hours after they were trapped by an explosion, leaving 13 unaccounted for, a rescue official said.

"The rescuers are in contact with 21 miners, who are 875 meters [2,870 feet] below the surface. All are doing well...Four of them are being brought to the surface," mine safety agency spokeswoman, Marina Nikitina told Agence France-Presse.