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This Morning presenter Phillip Schofield has backed the social media campaign to help find missing teenager Ben Savage.
The star retweeted a KentOnline appeal to his 4.13 million followers.
It comes after a search to find the missing 18-year-old is set to continue today.
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Ben Savage was last seen in the early hours of Tuesday after leaving the Tap N Tin nightclub in Railway Street, Chatham.
He'd been on a night out, but hasn't been found more than 96 hours later.
CCTV shows he'd been in the Sun Pier area at 3:16am on Tuesday - where teams have been searching for the past two days.
There's been a heavy presence of emergency services by the River Medway, including police, forensics, fire crews and the coastguard.
VIDEO: Emergency services at Sun Pier on Thursday
Family and friends of Mr Savage have launched their own searches, including one nearby the Tap N Tin nightclub.
They've also been handing out leaflets to raise awareness of the investigation.
Police are now carrying out work to identify potential new locations to search, and to retrace Ben's steps leading up to his disappearance.
Mr Savage is described as being 5ft 10in, of medium build and with short brown hair.
He is believed to have been wearing a black waist-length jacket with a zip on one arm, a grey T-shirt with a large white number on the front, dark blue skinny jeans and black trainers with white detail.
His family have been regularly updated by police and are being supported by officers.
Police warn of the dangers of people carrying out their own searches by the River Medway.
Anyone who may have seen Mr Savage after he left the Tap ‘N’ Tin nightclub in Railway Street, Chatham, at about 2.45am on 6 December is asked to get in touch with police on 101 quoting reference 06-0198.