A 20-year-old has been convicted of attempted murder after stabbing a teenage girl 22 times.

Simeon Shaba - a convicted robber - launched a frenzied attack on the 17-year-old in her Dartford home and then left her in a pool of blood.

Shaba, who is already serving another sentence for robbery, claimed he wasn't present when the assault happened - but a jury took just three hours before they rejected his claims and found him guilty.

He was remanded in custody and will be sentenced in August after being assessed about what danger he still poses to the public.

Presiding judge Judge Julian Smith told him: "This was a determined and vigorous attack. You were convicted on overwhelming evidence. There can be no justification for this."

Maidstone Crown Court heard how the victim's mother was injured as she fought off Shaba and forced him out of the house in Temple Hill.

The teenage girl who can't be named for legal reasons, told police in a taped incident played to the court how Shaba had unhooked a security latch and unlocked the door.

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"He picked up a towel and put it over my mouth. I said: 'What are you doing?' As I got up he took out a knife and started stabbing me.

"I remember he stabbed me so many times as my mum was pushing him out.

"I dropped to the ground. I was bleeding. I literally thought I was going to die."

She told the jury that her attacker had deliberately tried to stab her in her heart as she collapsed.

Prosecutor Daniel Stevenson said Shaba stabbed her with a kitchen knife across her body.

"She was stabbed in her neck, face, shoulder, back, abdomen and thigh and she suffered 22 separate stab wounds.

"There can be no doubt that this knife attack on a young female in her own bedroom fully intended to prematurely end her life, "

Shaba, of Sandling Rise, Eltham had denied charges of attempted murder and assault.