2014 World Cup costs up 15 percent

Brazil says the estimated cost of public spending on stadiums, airports and other infrastructure for the 2014 World Cup has been revised upward by more than $1.7 billion.

The country's Audit Court says the current $13.28 billion price tag for the tournament, which will bring matches to 12 Brazilian cities, is up nearly 15 percent from the initial estimate of $11.58 billion.

In a statement, the court said the overrun was due to the higher-than-expected cost of airport renovations and stadium construction.

The statement noted that while work on stadiums is progressing at a ''satisfactory'' rate, work on airports is ''moving at a slow pace.''

Earlier this year, the Brazilian government clashed with FIFA about the slow pace of preparations for the tournament.