South Korean authorities are investigating what appears to be a widespread cyberattack after several of the country's broadcasters and financial institutions reported a major failure of their computer networks.
At least three broadcasters - KBS, MBC and YTN - reported problems with their computers on Wednesday. The Shinhan Bank was also reported to be part of the attack. Local media suggest the country's stock markets have not been affected.
South Korean police say they are investigating the cause of the outages to determine whether it was a result of a cyberattack by North Korea.
The news comes just days after North Korea accused the United States of launching a computer attack on several of its websites, which were down for a prolonged period last week.
North Korea has repeatedly threatened to attack the South, in recent weeks, following the United Nations sanctions that came in response to its latest nuclear test.