A video camera lowered into a Utah mine where six workers have been missing for more than five days shows “survivable space”, but attempts to signal the miners were met by silence.

A video camera lowered into the mine where six miners have been missing for more than five days shows “survivable space”, a US official said today.

A second drill broke through to a Utah mine shaft today and a video camera was lowered inside, searching for the fate of six miners believed to be trapped nearly 2,000 feet below.