11.   Rescuers from the United States and France used tracking dogs to comb the rubble of a collapsed elevated railway station but found neither bodies nor survivors.

12.   Sophisticated listening devices were quickly brought in to comb the rubble in Oklahoma.

13.   Workers from American and French teams used dogs to comb rubble from a collapsed elevated railway station but found neither bodies nor survivors.

14.   A strong stench of decomposed bodies buried under the debris filled the air at the disaster site, hampering rescuers workers efforts in combing the rubble.

15.   Police, firemen and bomb disposal experts were combing the rubble of the house, which burst into flames as elite police troops launched the assault using grenades.

16.   Police, firemen and bomb disposal experts combed the rubble of the house, which burst into flames as elite police troops launched the assault using grenades.

17.   The area was cordoned off as firefighters combed the rubble for other possible victims.