Oyster card readers across London went down on Saturday morning, meaning Londoners were temporarily able to travel through the city for free.

At TfL spokesman said the network had been "experiencing technical issues" and confirmed the system was back up and running shortly before 10.50am.

Oyster card users took to social media during the glitch to celebrate the fact that they were getting free travel on the day that travel fares were meant to rise:

Oyster cards are plastic smartcards which can be used on a pay-as-you-or travelcard basis on transport across the London travel network.

The cards can be used on buses, tubes, trams, overground and rail services and the Docklands Light Railway,