NEW CCTV footage believed to be that of a missing firefighter has been released by police.

Father-of-four Anthony Knott, 33, has been missing since a night out with friends in Lewes on Friday, December 20.

As police released new CCTV footage thought to show Anthony on the night he disappeared, his best friend told how his disappearance was out of character.

Anthony’s family also released a new picture of him taken during the night out in Lewes.

Friend Steve Shepherd said Anthony had told his fiancee he would be home by 2am and they had made plans to meet on Saturday.

Steve told Sky news: “He was happy ... home life, friends, family. I spoke to him on the Thursday, we were going for a drink on the Saturday.

“It’s just unusual.

“He’s vanished and we don’t know where. Everything was normal.”

Police yesterday released new CCTV footage showing a man believed to be Anthony walking along White Hill, opposite the Elephant and Castle pub, shortly after he left his friends.

The same man is then spotted at 7.37pm walking back towards Market Street.

He then walks back up Market Street towards The Lamb at 7.41pm.

Anthony, of Orpington, Kent, was with a group of London Fire Brigade colleagues on a pub crawl when he left the Lamb pub in Fisher Street, Lewes, alone at about 7.16pm and has not been seen since.

The last footage was filmed 20 minutes after

Anthony’s phone was switched off.

Chief Inspector Sarah Godley said: “This new CCTV footage may jog someone’s memory from that night.

“Anthony has a distinctive walk and we believe in releasing this footage more people may come forward with information.

“Extensive searches continue throughout the local area and these have been supported by local officers, drones, dog unit, London Fire Brigade, East Sussex Fire and Rescue Service, the National Police Air Service helicopter, Sussex Search and Rescue and HM Coastguard.

“We have also extended our search of the River Ouse north towards Hamsey, and we will continue to search for Anthony until we get the answers his family are so desperately seeking.

“The flood water has been making some of the searches difficult but we remain committed to our searches to find Anthony.

“We would like to thank the public for the tremendous support in our investigation and remind people of their responsibility for their personal safety when out and about.”

Anthony is white, approximately 6ft tall, medium build with medium-brown short gelled hair.

He was last seen wearing a black long-sleeved top, a dark denim suit-style jacket, dark denim jeans and black shoes.

He is said to have a distinctive walk, with a slight bounce.

Anyone who may have seen Anthony should contact Sussex Police on 101, quoting Operation Barnstaple.

In an emergency dial 999.