The controversial commentator took to the social media site whilst being stranded on a train.
The mum-of-three was left facing delays after someone had tragically killed themselves by throwing themselves on the line in front of an oncoming train.
Katie tweeted: “There was another fatality in front of my train today. I seem to attract the suicidal like flies on a car wind screen.”
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One follower wrote angrily: “You actually don't have a heart. For someone who was recently talking about how 'depressed' you were being fat, I find this odd.”
Another tweeted: “Ooo, joking about suicide now. You're such a lovely person, Katie.”
One follower appeared to agree with Katie, writing to her: “It is the most inconsiderate way to top your self. Bringing London to standstill for 1 individual+ scarring the driver (sic).”
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Last year, the 39-year-old caused outrage when she made comments regarding the shocking rate of suicides in British prisons.
She said: "Suicidal prisoners should just kill themselves.”
Earlier this year, X Factor winner Sam Bailey slammed Katie, claiming that the former Apprentice contestant’s blunt comments could cause people to take their own lives.
She said: ''I worry she could do it to someone that's really depressed or on the brink of something... L'Wren Scott, no one knew she was the way she was. It only takes one thing to push someone over the edge so they commit suicide and she could be that person that upsets someone that much that they take their own life.
''I wouldn't like to be in her shoes. It's a matter of time before she upsets the wrong person.''
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