AT least four people are fighting for their lives after a car ploughed into pedestrians and smashed them against a shop wall.

The now injured driver – a man in his 30s – mowed down victims on Via Emilia Centro in Modena, Italy, before fleeing the scene.

Emergency crews scrambled to the horror scene, where seven people were injured, with four in critical condition as desperate rescue efforts continue.

In one of the most shocking details, a woman is feared to have lost both her legs in the brutal impact.

One woman has reportedly lost her legs in the brutal impact.

The driver was hunted down just moments later between Rua Pioppa and Corso Adriano, where police swooped in and stopped him.

The suspect allegedly lashed out while on the run – stabbing a passer-by who tried to stop him in his tracks.

He is now in custody and being questioned by officers at a local police station as investigators try to piece together what sparked the rampage.

Modena mayor Gian Carlo Mezzetti admitted there are still major questions surrounding the attack, revealing the driver was born and raised in the province but is of foreign origins.

β€œIt is not known whether he acted under the influence of substances or whether he committed this act deliberately,” he said.

Police are now urgently working to determine whether the shocking incident was a deliberate act of violence or a drug-fuelled frenzy.