PHILADELPHIA (AP) -- The FBI has confirmed that agents are investigating a cyberattack involving the Democratic National Committee that resulted in the release this weekend in embarrassing emails.

In a statement Monday, the FBI said it was investigating a "cyber intrusion" affecting the DNC and was "working to determine the nature and scope of the matter."

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The FBI said it will "continue to investigate and hold accountable those who pose a threat in cyberspace."
Emails arising from the hack were posted over the weekend to WikiLeaks. Their release led party chief Debbie Wasserman Schultz to announce her resignation.

A cybersecurity firm that looked into the DNC breach found traces of at least two sophisticated hacking groups on the Democrats' network -- both of which have ties to the Russian government.