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14 February 2012, 13:49 | Updated: 14 February 2012, 15:25
Heart's been told electricity has been restored to 100,000 homes in Oxfordshire after a power cut at lunchtime.
The outage was first reported to Southern Electric at 12pm today, with engineers managing to restore power by 12.45pm.
Southern Electric have tweeted to say: "We can confirm that today's power cut in #Oxfordshire was due to a contractor striking a main underground cable. Sorry for the inconvenience".
They will carry out an investigation to work out why it happened.
One of Heart's transmitters in Oxfordshire was affected by the problem - so if you were trying to listen around midday and could not hear anything this is why!