1.   Police immediately roped off the area and warned away onlookers.

2.   Police allowed protesters along a seven-block route that snaked between the U.S. and British embassies and shooed away onlookers.

3.   Police allowed protesters in groups and shooed away onlookers.

4.   Police allowed protesters to gather in groups and shooed away onlookers.

5.   Policemen clutching automatic rifles and backed by armored vehicles cordoned off the area, pushing and sometimes kicking away would-be onlookers.

6.   A stench of fuel permeated the air as scores of police and dozens of ambulances rushed to the scene, evacuating the wounded and pushing away onlookers.

7.   Hundreds of police and soldiers kept away onlookers as the rescuers searched through the wreckage.

8.   Hundreds of police and soldiers kept away onlookers, and ambulances cruised nearby streets to plead through loudspeakers for volunteers to give blood.

9.   Hundreds of police officers and soldiers kept away onlookers as rescuers searched for bodies and survivors.

10.   Hundreds of police and soldiers kept away onlookers as rescuers worked.