THIS is the shocking moment two teenage girls threatened to stab terrified passengers on a packed train.

Footage shows the girls - believed to be aged just 15 - launching into a vile tirade at a group of boys sat opposite them.

The gang threaten then threaten the lads - telling them they'll get "smoked" - meaning murdered or shot.

One says: "Who do you think you are? We're not no dumb b*****s, you wanna mess with us, I swear to God we’ll shank you up mate.”

She then adds: "My boy's coming on the train at Portslade, you're going to get nanked [beaten] up."

The shocking footage then shows the girls continue to make threats as one yells: "Do you want me to slice you up?

"I pray for all you lot, you're going to get stomped."

She then says she'll rob one of the boys, adding: "Don't p**s me off, bruv.”

One girl even makes a phonecall during the row and asks

the person on the other end to come to Portslade station, near Brighton, to "nank these guys up".

She adds: "He actually f***s up every man that I've ever seen him fight with. Two days ago he smacked a kid over the head with a hammer and broke his nose."

The footage was filmed on the 7pm train from Shoreham-By-Sea to Portslade on Friday by Michelangelo Thomson.

He captioned it: "If these were my daughters, I’d be embarrassed!

"Two 15-year-old girls jump on the train with a cigarette still lit, cussing swear words like no tomorrow and reeking of alcohol, threatening to shank people and thinking they’re big girls.

"Bloody disgusting.”

The video has been viewed more than 104,000 times and has gained 1,396 comments and 1,243 shares.

A spokesman from British Transport Police said that they have been made aware of the incident and are making enquiries.