11.   Rioters hurled petrol and acid bombs at police.

12.   Rioters hurled stones at cars and smashed showroom windows, pulling out motorcycles and setting them on fire.

13.   The army said the rioters also hurled firebombs.

14.   The incidents came just a few hours after rioters hurled gasoline bombs and rocks at police following a student demonstration Friday to protest proposed changes to the education system.

15.   The rioters also hurled petrol and acid bombs at the police and fired guns at them, police said.