A column of armed troops, trailed by a crowd of jubilant protesters, was heading for downtown Bujumburu after an apparent coup attempt, a local news outlet reported from the city on Wednesday.
Iwacu said two local radio stations had broadcast an announcement that Major-General Godefroid Niyombare - a former army intelligence chief - had deposed President Pierre Nkurunziza while he was away at a regional summit.
However, Reuters reported Nkurunziza's office as responding to the announcement by describing it as "a joke".
The army declared it is taking control of Burundi in a public radio announcement, according to International Business Times in the UK.
"Forces vive de la nation (allAfrica ed's note: Meaning "The activists of Burundi") have decided to take charge of the nation," Godefroid Niyombare, a former major general who was fired in April, reportedly said in the announcement.