A construction worker has been seriously injured in a fall at World Cup 2014 venue Arena Corinthians.
The person's identity has not yet been revealed but the Sao Paulo Fire Department has confirmed that a labourer had been rushed to hospital.
It has been reported that the worker fell eight metres and is now in a serious condition.
The Arena Corinthians is scheduled to stage six games at this summer's World Cup in Brazil, including the opening game between the tournament hosts and Croatia, as well as England's eagerly awaited meeting with Uruguay.
The venue, though, has already been touched by tragedy, with construction workers Fabio Luis Pereira, 42, and Ronaldo Oliviera dos Santos, 44, having died during an accident in November 2013.
There have also been deaths during work on the Arena da Amazonia in Manaus and the Estadio Nacional Mane Garrincha in Brasilia.