A man has handed himself into Brierley Hill police station after a noxious substance was sprayed in three business premises in Upper Gornal on Tuesday night.
Staff and customers at McDonald’s, Tesco and Pizza Hut were exposed to what is thought to be a type of pepper spray around 7pm.
Fifteen people were treated at the scenes for breathing difficulties by paramedics, with one taken to hospital. None have suffered any lasting effects.
Following fast-track CCTV enquiries, detectives made several attempts to locate a suspect and the 20-year-old is currently in custody for questioning on suspicion of administering a noxious substance.
Anyone with any further information should contact us via Live Chat at west-midlands.police.uk (8am - midnight) or call 101 anytime, quoting log 4401 of 20/10.