cyber attacks

South Korean intelligence officials believe North Korea or pro-Pyongyang forces committed cyber attacks that paralyzed major South Korean and U.S. government Web sites, aides to two lawmakers said Wednesday.

The sites of 11 South Korean organizations, including the presidential Blue House and the Defense Ministry, went down or had access problems since late Tuesday, according to the state-run Korea Information Security Agency. Agency spokeswoman Ahn Jeong-eun said 11 U.S. sites suffered similar problems. She said the agency is investigating the case with police and prosecutors.