In a statement police said: “The incident happened between Stratford and Mile End and was reported to police at 12.47am this morning.
“Officers from the BTP attended, along with medics from the London Ambulance service who treated the victim for what is believed to be non-life threatening injuries.
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A woman, who witnessed the attack, told the Daily Star that people were “shouting” in the carriage when she got on the Central Line at Stratford station.
She said: “Before the train got to Mile End people were screaming and jumping up from there seats.”
A man, who she believes was the suspect in the attack, ran off the train at Mile End station, according to the witness.
She continued: “That is when I saw this man stumbling and people told him he should get off the train but the doors closed on him before he could and he stumbled to the floor.
“People helped him up and put him back onto the seat and I thought he might have been drunk as I didnt see the blood yet.
London has witnessed a spike in violent crime in 2018, with stabbings at their highest level in six years, increasing 23 percent since 2017.
The Office for National Statistics (ONS) identified 40,147 offences “involving a knife or sharp instrument” in the year ending March 2018.
Gun crime has also increased, but at a lesser rate than knife-related crime – rising by two percent to 6,492 cases in the same period.
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