Workers from the Tyne and Wear Metro are on strike in a dispute over pay and working conditions.
The action is expected to affect thousands of commuters as all today's Metro services are cancelled.
Fans of the band Coldplay travelled to Sunderland despite Metro strikes and rain.
Coldplay fans were reliant on extra bus services to take them home from a concert last night because of strike action on the Metro.
The Tyne and Wear Metro is running again today after yesterday's strikes. It was timed to coincide with the Coldplay concert in Sunderland.