Brazilian construction workers building World Cup stadiums remained on strike after walking out on Monday in protest at a comrade's death at the stadium in Manaus.

The builders' union called the strike after 22-year-old Marcleudo de Melo Ferreira fell more than 100ft to his death at the weekend, leading to a court order halting all high-level work.

Half of the 12 stadiums being built for the tournament are behind schedule and workers insist that pressure to finish construction is affecting their safety.

Prosecutors imposed the court order until contracting firm Andrade Gutierrez presents a detailed report on the site's safety conditions.

They said that working conditions were "unacceptably dangerous," warning that contractors could be fined.

"The public prosecutor's office cannot allow the urgency of finishing construction for the 2014 World Cup to be at the cost of the life and wellbeing of those working on it."

A team of experts inspected the building site on Monday and is expected to produce a detailed report about the safety precautions.

The specialists are also reportedly looking into the working procedures at the site.

Hours after Mr Ferreira's death, another worker died of a heart attack at a nearby construction site. His family said he was overworked.

Another builder died in the Arena Amazonia in March after falling from a height of about 15 feet.

The stadium in the Amazonian jungle city of Manaus is where England will open their campaign, playing against Italy.