Construction company Saudi Binladin Group has reportedly laid off around a quarter of its 200,000 work force in the wake of the economic downturn in Saudi Arabia.
The group has terminated the contracts of 50,000 foreign workers, Saudi newspaper al-Watan said citing unnamed sources.
Some of the workers have refused to leave the country without getting paid and some have not received wages in months.
Binladin group has taken a heavy hit following the drop in oil prices over the past two years as it was among the chief beneficiaries of government contracts during the boom years.
Riyadh has slashed spending in a bid to cut a budget deficit which amounted to $100bn last year and has issued a new National Transformation Plan that aims to attract more private investment into the economy.