Two people have died in an accident at one of the stadiums which will be used at the 2014 World Cup in Brazil, the BBC reports.
The deaths occurred when a crane fell and destroyed parts of Sao Paulo’s Arena Corinthians stadium.
Brazil are due to play the opening match of the tournament at the 65,000 capacity venue on 12 June.
A Fifa spokesman said local authorities would fully investigate the accident and its president Sepp Blatter said he was “deeply saddened”.
Brazilian police said a number of other construction workers were injured in the accident, which happened when the final part of the roof covering the south stand was being installed.