Track fault at Oxford Circus

[xtmw]

What has caused this issue to occur 2 times within a month?

I recall it shutting down the Victoria Line between Victoria and Warren Street about two weeks ago, and happened again today, suspending the service between Warren Street and Brixton.

Victoria Line: No service between Warren Street and Brixton and SEVERE DELAYS on the rest of the line while we fix a track fault at Oxford Circus. Tickets are being accepted on London Buses.

[seaeagle]

From what I understand it was a different failure to the last one, just happened to be in the same area.