A tram fault has halted services between Nottingham Station and Wilford Lane in both directions.
NET said there is currently no service between the two stops.
The disruption follows an earlier announcement at 6am confirming the cancellation of several departures:
From Hucknall: 7am and 8.15am
From Toton: 7.08am and 8.08am
From Phoenix Park: 7.48am, 8.18am and 8.33am
From Clifton: 7.22am, 7.37am and 8.37am
No time for services to resume between Nottingham Station and Wilford Lane has been provided.
