A gunman has reportedly taken a guest hostage at the Saint Peter Hotel in Brasilia, Brazil, walking a man with what appears to be explosives strapped to his chest out onto a 13th story balcony.

According to the UK's Mirror, citing local media, the gunman and hostage suddenly appeared on the balcony Monday afternoon. The gunman has apparently been heard calling for the "fall of Dilma," or Brazilian president Dilma Rousseff. Police are currently negotiated for the hostage's release and the hotel has been evacuated.

[Image courtesy Brasilia Police]