Bujumbura - Burundian police fired teargas to disperse about 90 journalists protesting against the detention of a colleague accused of complicity in a 2011 gun attack, in a case that has raised concerns about a clampdown on media in the east African nation.
Police said they used force because the demonstration in the capital Bujumbura was illegal.
Journalists have been targeted in a wave of detentions. Human Rights Watch said in 2012 the government was trying to restrict efforts by independent media and civil society to denounce violence blamed on the state.
Deadly clashes in 2012 between security forces and former militia fighters rocked the country, which had enjoyed relative peace since rebels laid down arms and joined the government in 2009 after two decades of civil war.