Gareth Race, engineering director at Nottingham Express Transit (NET), said:
“Yesterday afternoon (22 October), we experienced a widescale communications failure which saw us lose all communications with our trams. This persisted over the course of the evening, and as such, we made the difficult decision last night to withdraw all services in line with our safety procedures.
"Our technical team have been working through the night with the support of industry experts to identify the cause of the fault. The fault was identified and rigorously tested overnight, with service resuming this morning (23 October). However, passengers may still experience some ongoing disruptions and delays throughout today as we continue to test and monitor the situation across the network.
"We apologise to all those who have been affected by yesterday's events and thank all our customers for their patience and co-operation. We encourage all our customers to check the NETGO! app and our website for the latest service information and any further updates.”