An individual took bus passengers hostage Tuesday at the main bus station in Rio de Janeiro, Brazil, and left at least two people shot and wounded. The area has been cordoned off and agents from the elite Special Operations Battalion (BOPE) unit are “conducting negotiations on site,” Rio military police explained in a statement.

According to media reports, around fifteen people are being held hostage. In 2000, a hostage-taking of bus passengers in a residential area left two people dead.