US President Barack Obama
Media playback is unsupported on your device
Video

Barack Obama: 'No sign' of Petraeus security leak

US President Barack Obama says he has seen "no evidence" that former CIA director David Petraeus' extra-marital affair compromised national security.

General Petraeus' resignation should be a "sidenote" to his distinguished career, Mr Obama added.

President Obama was making his first public comments on the scandal at his first news conference since his re-election.

Go to next video: Petraeus scandal engulfs US general