He told The Wall Street Journal in a telephone interview that the blast happened quickly and without warning.

WSJ: Guides Recall Escape From Philippine Volcano

He told The Wall Street Journalthat the blast happened quickly and without warning.

WSJ: Guides Recall Escape From Philippine Volcano

In the CNN interviews, the workers described a corporate culture of cutting staff and ignoring warning signs ahead of the blast.

CNN: Rig survivors: BP ordered shortcut on day of blast

No warning was given before the blast, according to police spokesmen, and there were no immediate claims of responsibility for the blast.

BBC: Reward for Cape Town bombers' arrest