A FEUD between Eastern European migrant workers may have triggered the acid attack on a three-year-old boy.

Cops said CCTV captured a “pink chemical” being thrown into his face as his mum pushed him in a pram.

10 A three-year-old boy who was the victim of an acid attack could have been targeted as part of a feud between migrants Credit: PA:Press Association

10 Police said a 'pink chemical' had been thrown into the boy's face as his mum pushed his pram Credit: SWNS:South West News Service

Three men were arrested early yesterday and another is still in custody. The mum and boy were under police protection last night.

It is understood the dispute may have started with the end of a relationship involving the mum.

Today, police arrested a fifth man, a 41-year-old from Wolverhampton, on suspicion of conspiracy to commit grievous bodily harm.

Chief Supt Mark Travis said officers were keeping an “open mind” about a motive for Saturday’s attack at a discount shop in Worcester. But he revealed: “This is not the way to resolve issues and disputes in communities.”

10 Police believe the toddler was deliberately targeted by the men Credit: PA:Press Association

10 Three men were arrested at a property in Walthamstow, East London Credit: Nick Obank - The Sun

10 The men, aged 22, 25 and 26, were arrested on suspicion of conspiracy to commit grievous bodily harm Credit: Nick Obank - The Sun

10 Police have been at the London home since the arrests were made Credit: Nick Obank - The Sun

West Mercia Police's Chief Superintendent speaks about the latest updates on the Worcester acid attack as three more men have been arrested

Three men aged 22, 25 and 26 were held yesterday in Walthamstow, East London, on suspicion of conspiracy to commit grievous bodily harm.

The 39-year-old man is also still in police custody, along with the 41-year-old.

Detective Inspector Jim Bayliss said: "Our officers are continuing to work extremely hard on this investigation.

"At this time we believe this to be an isolated incident and there is not a wider risk to the public."

10 Police were seen scouring the busy retail park for evidence as witnesses recalled their horror of the attack Credit: SWNS:South West News Service

10 The boy was assaulted at a Home Bargains shop in Worcester

Neighbours said they are from a brawling gypsy community. One said: “Two were bare-knuckle boxing in the street.”

A 39-year-old man from Wolverhampton who was arrested on Sunday is still being quizzed.

Nick Carson, of West Midlands Ambulance Service said : “It’s horrific, absolutely horrific.

“We had no inkling or reason to suspect that it was an acid attack, we just thought that maybe he’d come into contact with some sort of chemical.

10 The isle in the shop where the attack took place - Home Bargains has since reopened for business Credit: SWNS:South West News Service

10 Chief Supt Mark Travis said 'this is not the way to resolve issues and disputes in communities' Credit: SWNS:South West News Service

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“But to find out that afterwards that that was the case, it’s shocking.

“The fluid that I saw was pink in colour. It had quite a strong smell, no bleach or acidy type smell but it was an astringent kind of smell.

"It just smelt like a chemical really."

The boy suffered burns to his face and left arm.

West Mercia Police's Chief Superintendent speaks about the latest updates on the Worcester acid attack as three more men have been arrested