A man has been arrested after a three-year-old boy was injured in a suspected acid attack in the UK on Saturday.
The child was treated for serious burns to his face and arm, and police believe he was purposely targeted, the Guardian reports.
A 39-year-old man from Wolverhampton was arrested on suspicion of conspiracy to commit grievous bodily harm, and police are currently searching for three other men of interest.
The attack occurred at around 2:15pm on Saturday (local time) in a discount store in Tallow Hill, Worcester.
Police chief Mark Travis said the motive of the attack is so far unclear.
"At this time we are treating this as a deliberate attack on a three-year-old boy...Officers are working hard to establish exactly what happened and what the substance involved was," he told the Guardian.
Worcester councillor Marc Bayliss called the attack "pure evil".