Met Police Assistant Commissioner Nick Ephgrave has said it's "shocking and deeply disturbing' that a serving police officer has been arrested in connection with the disappearance of Sarah Everard.
Ms Everard, 33, was last seen in Clapham at about 21:30 GMT on 3 March.
The Met said officers had visited 750 homes in the area as part of the investigation and the force had received more than 120 phone calls from the public.
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