An elderly grandmother in a wheelchair has been left with horrific bruises after a shopper beat her in the bread aisle of a Walmart store.

Sandra McClung, 75, was doing her grocery shopping in Atlanta, Georgia, on Sunday in a motorized cart when another woman almost collided with her in the aisle.

McClung told police the woman yelled an expletive at her as she told her to move her motorized shopping cart.

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Sandra McClung, 75, was left with horrific bruises when a woman repeatedly punched her while doing her grocery shopping in Atlanta, Georgia, on Sunday

'I thought she was going to go around,' McClung told Alive11. 'She looked at me and she said: 'I want to get some bread, white b****.'

The grandmother admitted that as she wheeled away she muttered 'you're the b****'.

McClung said Venderburg must have heard because she followed her down the aisle and started punching her in the face.

'There wasn't anybody in the aisle, and the next thing you know she was jumping on me,' she said.

The police report alleges Venderburg punched the woman so hard she was left with facial bruising and a bloody nose.

McClung's arms were also severely bruised as she tried to shield the incoming punches

McClung told police the woman, yelled an expletive at her as she told her to move her motorized shopping cart

Her arms were also severely bruised as she tried to shield the incoming punches.

'She kept socking me in my glasses, and then hitting me in my mouth,' McClung said.

McClung told police her attacker fled the store after the attack but accidentally dropped her cell phone in the elderly woman's shopping cart.

Police were able to uncover Venderburg's identity by unlocking the phone and retrieving her contact information.

Venderburg could face simple assault and battery charges once police track her down.