Last year ex-president Jair Bolsonaro was sentenced to 27 years in jail for plotting a coup after losing an election.
What court papers and sources close to the investigation have told the BBC about the scope of the plan.
Nigerian authorities have charged six military officers over an alleged plot to overthrow President Bola Tinubu.
Former Brazilian intelligence chief Alexandre Ramagem has been detained by ICE in the United States, the agency reported on its website on Monday, after he fled Brazil in September following his conviction for plotting a coup with then-president Jair Bolsonaro. Ramagem, 53, is a former congressman and police officer who commanded Brazil’s main intelligence agency, ABIN, under Bolsonaro. He was sentenced to more than 16 years in prison for his role in a plot to overturn leftist leader Luiz...
Brazilian media reports that Alexandre Ramagem fled the country after being convicted for involvement in coup plot.