The family of missing Tonbridge man Kieron Knowlden believe his drink might have been spiked before he disappeared over a week ago.

CCTV footage shows the 25-year-old walking in a "zombie" state after he left Mojo's Bar, in Barden Road, at about 2am on Saturday, March 1.

Police denied allegations his brother Kristy said he had heard that three other people had their drinks spiked at the same bar - including one person left in an induced coma.

Kristy told KentOnline: "The way he was walking is different to how I've ever seen him walk before, even when he is drunk.

"He wasn't himself, he was toppling all over himself, but it does show he was trying to make his way home.

"We have not accepted that Kieron is dead, but there's not much more we can do. I'm exhausted from this."

He added he had heard a total of four people had their drinks spiked, including a friend left in an induced coma.

But a Kent Police spokesman said there was no evidence this was the case.

Father-of-one Mr Knowlden did not return home in Forest Grove and was reported missing the following day.

Police divers began scouring the river in Tonbridge on Friday close to where he was last seen - and after a medium told the family where to find his body.

Extensive police and community searches in the area have so far failed to find a body.