21.   The impact scattered passengers and caused mass confusion, he said.

22.   They also say that leaving Mexico City behind an hour would create mass confusion among tourists flying into the capital and workers arriving from suburbs.

23.   Fumes quickly overcame commuters and caused scenes of mass confusion as ambulances raced through the streets ferrying people to hospitals throughout the capital.

24.   There was mass confusion as people rushed to get out of the administration building while police and paramilitary troops cleared the area.

25.   There was mass confusion as people rushed to get out of the provincial administration and police and paramilitary troops tried to clear the area.