The owner of Chinese gypsum mine that collapsed Friday, killing one worker and leaving two dozen others trapped, committed suicide early Sunday, China's state-run news service reported.
The news service, Xinhua, identified the owner as Ma Congbo, according to NBC News.
Ma, owner of the mine in Shangdong Province, was working alongside hundreds of rescue workers when, at 2 a.m., he leaped into a well and drowned, according to the AP and Xinhua.
The cause of the collapse, which occurred just before 8 p.m. Friday, remains under investigation, Xinhua reported. On Sunday, 17 workers remained trapped as emergency personnel tried to get them water, according to Xinhua.