• Crane collapse at the Itaquerão damaged perimeter wall
• Ground unlikely to be finished before Fifa's year-end deadline
The World Cup stadium accident that killed two workers could lead to a delay in construction of one to two months but the tournament's opening game is still expected to go ahead as planned on 12 June in São Paulo.
The crane collapse at the Itaquerão stadium on Wednesday damaged part of the perimeter wall. After a period of mourning and investigation, construction work will not resume until next week, making it unlikely that the ground will be completed before Fifa's year-end deadline.
With little more than seven months left until the start of the World Cup finals, time is running out but Fifa has no alternative but to accept a delay because other stadia in Brazil's biggest city are not suitable. Venues in other cities have been ruled out because the opening match coincides with Fifa's annual congress in São Paulo.
The construction company Odebrecht has yet to announce a new completion date and is unlikely to do so until a full assessment has been made of the accident. During this process, which is expected to last a week, almost a third of the site will be off limits.
Jair Paca de Lima, a civil defence engineer who has conducted a preliminary survey, said the structure of the stadium has not been compromised.
The cause of the accident is unknown but among the theories being explored are human error, technical failures and subsidence. Five workers have died building stadiums for the tournament, compared with two in the buildup to South Africa 2010, reported the Veja website.
Of Brazil's 12 World Cup venues, six were completed before the Confederations Cup in June. The remaining six were due to be finished by the end of December.