A bottle of "ignited liquid" thrown at an employee of a halal butchers is being treated as a potential racist attack.
West Midlands Police said the incident took place in Pleck, Walsall, at about 17:20 BST on Monday.
The worker was bruised by the bottle, while the shop suffered fire damage.
Officers are looking for a man described as white and about 6ft tall who was seen on CCTV entering the shop.
A police spokesman said: "One of our lines of investigation is to determine if this is a racially-motivated assault."
