1.   Bhutto was choked by tear gas earlier when police fired canisters directly at her open-top jeep.

2.   In two recent incidents, police fired at mobs of unruly protesters.

3.   It was then that the police fired tear gas.

4.   Police fired into the crowd without warning.

5.   Police fired rubber bullets to break up the crowd.

6.   Police fired shots into the air and used water cannon to disperse the crowd.

7.   Police fired tear gas canisters into the crowd.

8.   Police fired tear gas to quell the rioting.

9.   Police fired tear-gas canisters at the crowd of protesting students.

10.   Police fired warning shots into the air.