The government said it has placed security cameras inside voting schools in a move to prevent a possible fraud in the elections. The announcement, made by Interior Minister Florencio Randazzo, came only hours after he had flatly rejected the possibility of fraud in the vote and criticized the opposition for questioning the legitimacy of the electoral process.

Randazzo also told a radio interview that the government had decided to reduce the number of voter per voting station to prevent any possible inconveniences. He said the cameras would seek control people transit at voting locations, and any suspicious gathering of people suggesting the authorities that irregularities could take place.

"We have also placed television cameras in voting stations," said Randazzo, who defended the initiative claiming it would "grant more transparency of the electoral system, which allowed Argentines to elect presidents (of different political backgrounds) such as Raúl Alfonsín, Carlos Menem, Néstor Kirchner and Cristina Kirchner, and governors like Hermes Binner in Santa Fe."

About 100 cameras were only installed in certain "hot spots" in Greater Buenos Aires, where irregularities had been reported in previous elections.

Only hours earlier, Randazzo had said that the candidates of the opposition Unión-PRO and the Civic and Social Accord "could be defending their personal interests" after they mentioned the possibility of a fraud. On Thursday, the electoral court issued a written statement blasting the government for failing to adopt recommendations made by the judiciary to secure transparency during the vote.

• Electoral court criticizes government's failure to improve transparency