A man in his twenties has been arrested by police as part of the search for missing teenager Grace Fisher.
Ms Fisher, 16, has been missing since Friday 13 October and officers are becoming increasingly concerned about her.
Yesterday, a man was arrested by police in connection with the case and remains in custody.
He is believed to have been with Grace near Chatham Bus Station, at around 10.30pm on the same day she was reported missing to the force.
They were then seen on CCTV walking in n The Brook at around an hour later.
Grace was last seen wearing a grey jumper with a black ‘New York’ emblem, black leggings and white Nike trainers.
Grace Fisher has been missing for three weeks and concern for her safety is growing
She was last seen on Friday 13 October wearing a grey jumper with a black ‘New York’ emblem, black leggings and Nike trainers
She sometimes uses the names Rosie or Harmony, has links to Medway, Maidstone and also Camden in north London
Detective Inspector Scott Relf said: ‘This is the second arrest we have made in connection to the investigation. A man who was previously arrested remains on bail.
‘Grace if you are reading this then I want to encourage you to get in touch with us, we want to ensure you are safe and remind you that you are not in trouble.’
Officers are reminding the public to call them with any potential sightings of Ms Fisher or with information that may assist the search.
Residents and businesses with private CCTV near the bus station, and motorists with dashcam footage, are also asked to check whether she may have been caught on film.
She sometimes uses the names Rosie or Harmony.
She has links to Medway, Maidstone and also Camden in north London.
Anyone who has seen Grace or knows where she is should call 999, quoting reference 13-1191.