from nationalrail.co.uk:

"Train services in the Huntingdon area are being disrupted due to overhead wire problems.

"First Capital Connect will operate a replacement bus service between Peterborough and Huntingdon.

"GNER are operating an hourly shuttle diesel train service between Peterborough and Stevenage calling at Huntingdon."

Bollocks.

Of course, all GNER can say on THEIR site is: "GNER services in the Peterborough area are disrupted at present due damage to overhead power lines. GNER services will be subject to late notice cancellation and alteration. GNER wishes to apologise for any inconvenience that this may cause."

Pull your bloody fingers out, GNER, for Pete's sake.