Police have sometimes used tear gas and water cannons to control crowds.

The police eventually turned to tear gas and water cannons to clear the protesters away.

Police have used tear gas and water cannon to control protesters.

Tear gas and water cannon have been used by the authorities.

Police can use tear gas and water cannons against protesters.

The police used tear gas and water cannons to quell the violence.

The police used tear gas and water cannons to disperse the crowd.

The police responded with tear gas and water cannons.

Police repeatedly fired tear gas and water cannons at the protesters.

At the start of the strike, police attacked workers with tear gas and water cannon.

Police have sometimes used tear gas and water cannons to control crowds.

The police eventually turned to tear gas and water cannons to clear the protesters away.

Police have used tear gas and water cannon to control protesters.

Tear gas and water cannon have been used by the authorities.

Police can use tear gas and water cannons against protesters.

The police used tear gas and water cannons to quell the violence.

The police used tear gas and water cannons to disperse the crowd.

The police responded with tear gas and water cannons.

Police repeatedly fired tear gas and water cannons at the protesters.

At the start of the strike, police attacked workers with tear gas and water cannon.