Total spending rises to 638.8 billion rubles (USD 10.8 billion), with all of the increase coming from federal budget funds, which now make up almost 55 per cent of total spending.
The increase dwarfs previous attempts to cut costs by reducing the number of high-end hotels to be built and trimming expenses on other infrastructure.
There was no immediate comment by the World Cup organising committee on the reason for the increase, which was announced when an updated budget document was published on the government legal database.
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