Four people have been hospitalized after a household gas explosion in Omsk, Itar-Tass was told at the press service of the Siberian regional centre of the Russian Emergency Situations Ministry. “Four people have been hospitalized at present, one child is under the debris, rescuers have voice communication with him,” the ministry noted. More people may be stating under the debris. According to the regional emergencies centre, preliminary reports suggest that there was a household explosion on the fourth floor of a five-storey married families' hostel in Osoviakhimovskaya Street. Rescuers have been working at the scene, however, the information and circumstances are being verified. Police officers are working at the incident site.