Major delays and cancellations are taking place on trains in south London and north Surrey this morning due to a fire alarm going off at a signalling centre.

The alarm activation at the Three Bridges Signalling Centre near Gatwick has seriously disrupted services, including First Capital Connect and Southern trains.

First Capital Connect (FCC), that runs the Thameslink services into Sutton, said delays and cancellations were likely until 12pm today.

Commuters at Tooting and Wimbledon and East Croydon train services have complained of serious delays.

A spokesman for Southern trains said: "Train services across the whole Southern network are being being disrupted due to an earlier fire alarm sounding at the Three Bridges signalling centre.

"Delays of up to 45 minutes can be expected. Services will be subject to short notice alterations and cancellations this morning."

A FCC spokesman said: "Services are returning to normal following an earlier fire alarm activation at Three Bridges Signalling Centre.

"Delays and some cancellations are likely until 12pm today, due to trains and drivers being out of position. We are sorry for any disruption to your journey.

"If you have been delayed by 30 minutes or more please ensure claims are submitted via Delay Repay.

"If you travel using an Oyster Card please upload your receipt or a copy of your transaction by logging into your Oyster account on the Transport for London website.

"If you hold a daily and abandoned your journey entirely please return to the same point of purchase for a full refund."

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