China on Wednesday denied hacking into America's electrical grid.

"The intrusion doesn't exist at all," Chinese Foreign Ministry spokeswoman Jiang Yu said at a regular press conference.

Several international news agencies reported that cyber-spies penetrated the US electrical grid, leaving behind software programs that could be used to disrupt the system.

The articles said the spies came from China, Russia and other countries.

Jiang Yu denied China had any involvement with mapping or breaking in to America's infrastructure.

"I have also noticed that the US White House had denied the media reports," she said.

"We hope that the concerned media will prudently deal with some groundless remarks, especially those concerning accusations against China," Jiang said.

(Xinhua News Agency?April 10, 2009)