Bangladesh's military-backed government has ordered an indefinite curfew in Dhaka and other cities after worsening violence between students and police.At least one person was killed and 100 others injured as riots by students spread to more universities across the country on Wednesday, police say.
The government has appealed for calm, and warned people not to break the law.
The violence poses the most serious challenge to the emergency government since it took power six months ago.
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