FIFA said it is waiting to find out the extent of the damage caused by an accident at a Brazilian stadium before deciding whether the venue will be ready for the 2014 World Cup.
Two workers were killed yesterday at Sao Paulo's Corinthians Arena, which is due to host the opening match of next summer's tournament.
"It is too premature to make any detailed assessment on the situation of the Corinthians Arena as we are still awaiting the technical report to be able to evaluate the scale of the damage," FIFA said in a statement sent to The Associated Press.
"We will be able to provide an update earliest next week."
Part of the stadium was destroyed when a crane crashed into a 500-ton metal structure that toppled onto the venue's east stand.
A statement on the website of Corinthians, the Brazilian club due to occupy the Itaquerao Stadium in Sao Paulo, said the number of workers killed was two, rather than the three initially reported.
In the early afternoon an accident in the work of Corinthians Arena caused the death of two workers - Fábio Luiz Pereira, 42, driver / operator, and Ronaldo Oliveira dos Santos, 44, assembler.
Shortly before 13:00, the crane that hoisted the last module of the structure of the metal roof of the stadium collapsed, causing the fall of the part of the circulation area of the east building - partially hitting the LED facade.
The structure of the grandstand was not compromised.
Teams of firemen are in place. At the moment, all efforts are focused to provide full assistance to the families of the victims.
Images from Brazilian television showed part of the fallen crane, seen in yellow, underneath the metal structure which had buckled and collapsed onto a section of the stand at the stadium in Sao Paulo.
Firefighter spokesman Mauro Lopes told Brazilian radio that the accident happened when a crane collapsed on top of a metal structure above the east stand at the Sao Paulo stadium, the Associated Press reported.