Earlier in the day, the broadcaster reported an explosion in the Wulong District of Chongqing, elaborating later that the incident occurred on Friday at 12:10 p. m. local time [04:10 GMT], when the building housing the canteen collapsed, trapping at least 20 people under the rubble.
As of 6 p.m. local time, rescuers had saved 13 people from the debris, three with no traces of life, the media reported.
A search and rescue operation is underway at the site, with the police investigating causes, according to the broadcaster.