Jakarta – Indonesian anti-corruption officers discovered thousands of dollars in bribe money at a customs and excise office in Jakarta in a midnight raid, reports said Saturday.

During the raid "more than 300 million rupiah (32,000 dollars) was found," Mohammad Jasin, deputy of the Corruption Eradication Commission, told state news agency Antara. He said the cash was in envelopes attached to import documents at the North Jakarta Tanjung Priok port customs office.

Jasin said it appeared that importers had given the cash bribes to officials "so their documents could be processed without any problems." He added that the government had spent some 4.3 trillion rupiah to reform bureaucracy in the office, including a systems upgrade and salary raises.

Jasin said 20 customs officer were taken in for questioning after Friday's raid, including a man who attempted to hide the illegal cash. The man was "caught trying to hide money in his socks," Jasin told detik.com news website.

He added that the man and another officer were arrested for corruption and could face legal sanctions and be fired from their jobs. The other 18 officers have not yet been charged.