Human rights groups warn that the deaths of immigrant construction workers in Saudi Arabia are “surgent” as it prepares to host the World Cup in 2034.

Workers have died in preventable workplace accidents in the country, all of which were reported today, according to reports from Human Rights Watch and Fairsquare.

Many such deaths were wrongly classified as occurring for natural reasons and the worker's family was not compensated, the report said.

Both groups called on Saudi authorities to ensure basic security protections for the country's enormous immigration efforts.

“The 2034 Saudi World Cup will be the largest and most expensive ever, but it may also be the highest cost in human life as millions of migrant workers build infrastructure that includes 11 new stadiums, rail and transport networks, and 185,000 hotel rooms,” Minky Worden, head of global initiatives at Human Rights Watch.

The warning was issued on the day after FIFA President Gianni Infantino visited the country with Donald Trump.

FIFA - Football's global governing body - expresses "a firm commitment to the protection and promotion of human rights in its actions".

However, Human Rights Watch accuses FIFA of failing to learn from the deaths of migrant workers at the 2022 World Cup in Qatar.

Data on immigration deaths are difficult to obtain in countries where human rights groups have very limited access to and banned unions.

However, Human Rights Watch interviewed families of 31 workers from Bangladesh, India and Nepal who fell from a height, were crushed or decapitated by heavy machinery or were electrocuted.

The Heat is another major issue as Saudi Arabia step up construction efforts in preparation for the 2034 Championship.

In March, Pakistani foreman Muhammad Arshad reportedly fell from a construction site in a stadium built in the eastern city of Al Khobar, the first death related to the World Cup.

Last year, the Saudi government said "real achievements" have been made in occupational health and safety, and deaths and injuries are falling.

FIFA also praised Saudi Arabia for its "major steps" since 2018.

But, BWI, a global coalition of construction workers, said the accident had a "shocking rise".

"These are the consequences of systemic negligence, corruption and oversight and accountability," said BWI Secretary General Ambet Yuson.

Fairsquare said Saudi medical authorities rarely conduct autopsy to determine the exact cause of the death of migrant workers.

“Thousands of young people, many of whom have young families, are trapped in a labor system that poses serious risks to their lives, a health care system, without the ability to determine the cause of death, and the political system does not seem to protect them or discover how they died, let alone how they died, let alone compensated for the compensation of Saudi Arabia Arabia by the THAAD family.

He described FIFA's human rights policy as "fake".

"While FIFA praised Saudi Arabia for its huge profits for the aftermath and high-paying Western law firms for planning Saudi Arabia's reputation, children like Nepal grew up without a father and never even learned their deaths," he said.

FIFA told Human Rights Watch it plans to establish a worker welfare system specifically targeting the delivery of construction and services related to the Saudi World Cup.

"We strongly believe that measures taken to ensure construction companies respect their workers' rights on the FIFA World Cup website can set new standards for workers' protection in the country and contribute to the broader labor reform process, thus helping to enhance protection of workers in the World Cup and beyond," it said in a letter.

But Human Rights Watch said no further details on how the welfare system works.

"The Saudi authorities, FIFA and other employers should ensure that the deaths of all migrant workers are properly investigated regardless of the circumstances of career, time and place, and treated with dignity and received fair and timely compensation."

The BBC has sought comment from Saudi authorities.