Five people missing after explosion at Oklahoma drilling site

Five people are missing after an explosion at an Oklahoma drilling rig Monday morning, according to news reports.

The explosion happened shortly before 9 a.m. Central time in northeast Pittsburg County, Sheriff Chris Morris said at a news conference Monday afternoon. Twenty-two employees were drilling a gas well at the site when the explosion happened; five remain unaccounted for, while the others were able to get out safely, Morris said.