A shop worker has been attacked with a machete in a violent robbery caught on camera.

The victim was struck over the head with the weapon, hidden in a sock, by a masked man as he grappled with a second raider.

He required surgery for a large wound to the top of his head following the attack at the Top Shop convenience store on Rocky Lane, in Monton, Salford.

Two masked men had burst into the shop, one jumping over the counter demanding the till be opened.

The shop worker refused and tried to fight them off with a bat but as he grappled, one raider held him while the other hit him over the head with the weapon.

He was left bloodied and injured as the robbers fled with cash and cigarettes and ran down Park Road towards Eccles Park and Ellesmere Road.

Police are appealing for information on the robbery, shortly before 8.30pm on Friday March 27.

Detective Constable Derek Nellany of Greater Manchester Police said: "I am appalled at the level of violence and intimidation used by the men on an innocent shop assistant who was just doing his job. The man was trying to protect the business but in doing so was brutally attacked.

"The offenders both wore very distinctive clothing and I ask people to have a good look at the footage and if you recognise the men in the images or the distinctive clothing, please contact police immediately."

The man with the machete is described as white and in his late teens to early 20s. He wore a facemask and a black top with a thick light-coloured strip down both arms and a white T-shirt over the top, and black trousers.

The other man is also a white male around the same age. He wore a blue hooded top with the words California Pasadena in large lettering on the back, and black trousers.

Anyone with information should phone police on 0161 856 5097 or the independent charity Crimestoppers, anonymously, on 0800 555111.