A chlorine leak from a compressor occurred at the Chimcomplex chemical plant in the Romanian city of Râmnicu Vâlcea, leaving three people injured and hospitalised.
According to Romanian media, cited by Report, the incident took place at the chemical platform.
A total of 260 people were also evacuated from the plant.
Authorities issued two RO-Alert warnings to residents in the potentially affected area within a five-kilometre radius. Residents were advised to follow official instructions and remain indoors.