Shocking footage shows knife-wielding violent robber battering petrol station cashier

This is the shocking moment a suspect pulled out a knife and repeatedly punched a petrol station cashier before stealing alcohol.

West Midlands Police released footage of the man who appeared to launch the brutal assault in the Selly Park area of Birmingham on March 14.

The man is captured walking around an Esso at 7.15pm wearing a sweatshirt on his head but no mask.

He was challenged for trying to leave without paying for a bottle of spirits and a can of beer.

Read: Illegally demolished 100-year-old pub set to open doors after 'brick by brick' rebuild

He is then shown holding the shop assistant still while landing a flurry of powerful punches to the head.

His victim was left with head wounds requiring stitches and widespread bruising.

A force spokesperson said: "We've launched an appeal for information after a cashier was assaulted and threatened with a knife at a petrol station on Pershore Road, Birmingham.

"The suspect entered Esso in Selly Park at around 7.15pm on 14 March.

Read more:

Four men jailed for total of 113 years over fatal drive-by shooting

Prince William and Prince Harry to reunite at funeral amid ongoing rift

"He picked up a bottle of spirits and a can of beer and tried to leave without paying.

"When challenged by a cashier, he launched into a violent attack.

"The victim has been left with two head wounds, one requiring 14 stitches, as well as bruising to his face, body and arms. Tell us who this man is."

Watch the latest videos from Yahoo UK News