Commuters using trams this morning are experiencing delays due to overhead line problems and a person taken ill.
Lines one and two are running a reduced service between West Croydon and Elmers End, and between West Croydon and Beckenham Junction due to overhead line problems.
Lines one and two are running between Croydon town centre and Addiscombe.
And there are delays on line three due to a person taken ill at Mitcham Junction.
It is not yet known when normal service will be resumed.