Commuters facing rush hour delays on Victoria Line

Commuters using the Victoria Line this morning may want to leave extra time for their journeys.
Crowd control measures are in place at Seven Sisters and Victoria station, and at Finsbury Park there is no interchange available between the Victoria and Piccadilly Lines for southbound services.
https://twitter.com/victorialine/status/783934365826949120
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Transport for London said the delays were due to a person falling ill on a train earlier this morning.
https://twitter.com/victorialine/status/783936618067525632
Several Twitter users posted pictures of massive crowds trying to access the Victoria Line.
https://twitter.com/marxculture/status/783936494088101888
https://twitter.com/rtrn94/status/783941005238276097