A HEARTBROKEN mum of a teen rapper killed on a stolen scooter during a police chase has spoken out amid raging migrant violence in a Swiss city.

Marvin M, 17, died after crashing into a garage wall while fleeing cops in the Prélaz neighbourhood on Sunday - sparking explosive unrest in Lausanne.

She told 24 Heures: "My son isn't a scooter thief. He wasn't a bandit, he wasn't known to the law .

"He was never a complicated child. He was stable. We didn't see a scooter stolen from home."

She continued: "There was a group effect. They passed this scooter around among the kids. Who brought this scooter? We don't know."

The grieving mum from Algeria added: "Talking about it makes my stomach ache."

Marvin's death has triggered hellish riots in the lakeside city - with youths torching bus

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