ITV has been filming in Watford in preparation for the sixth series of a hit show.
The broadcaster was preparing for the sixth series of Ninja Warrior UK at the Ninja Warrior UK Watford activity centre.
The venue closed for filming on Friday July 22 from 8am to 12.30pm and from 4pm onwards, as well as on Sunday from 8am to 2pm.
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Camera crews and green screens were seen, as filming began at the obstacle course.
Ninja Warrior UK is returning from a three-year hiatus and has now begun production.
Ben Shephard, Rochelle Humes, and Chris Kamara will return as hosts for the new series.
The ITV show is the UK version of the Japanese competition Sasuke, which has been adapted for more than 25 countries.
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