prank

The 22-year-old is known for filming provocative videos involving pranks, with titles like "I got kicked off a cruise" and "I crashed into a cop car".

When she got in the game, she says, she was happy to feed the algorithm with memes, pranks, dances — whatever it took to attract somebody’s attention.

The couple, however, were unable to see who was outside in the dark and initially thought it might be a prank.

In the next carriage, coach H, YouTuber Olly Foster heard shouts of "run, run, there's a guy literally stabbing everyone", and initially thought it was a Halloween prank.

Olly Foster, a passenger on the train, told the BBC he initially heard people shouting "run, run, there's a guy literally stabbing everyone", and believed it might have been a Halloween related prank.