Apr 8, 2010 8:55 AM by Bea Karnes, News First 5
Rescue crews in West Virginia are making their way into the mine where four men remain missing after Monday's explosion.
The crews had to wait until toxic gases were vented. There appears little hope anyone is still alive. Besides looking for the four men, rescuers will try to retrieve the bodies of 18 miners known to be dead inside.
The known death toll from the tragedy is 25.