A MAN has been arrested after 15 people were injured in a pepper spray attack in a McDonald's Tesco and Pizza Hut last night.
One person was rushed to hospital after the "noxious substance" in Upper Gornal's The Arcade, before a 20-year-old handed himself into cops.
Medics treated people for breathing difficulties and irritation, with one person suffering palpitations.
Eye witnesses told how they saw emergency services swoop in hazmat suits.
They wrote on Twitter: "It's so frightening and pretty much on the doorstep too."
Dozens of fire engines and police cars were seen outside the taped off spots where gas was sprayed.
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Police confirmed this afternoon: "A man has handed himself into police at Brierley Hill police station today after a noxious substance was sprayed in three business premises in Upper Gornal, Dudley last night (20 Oct).
"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."
A West Midlands Ambulance Service spokesperson said: "We were called to reports of an unknown chemical being sprayed at Pizza Hut in Upper Gornal at 7.23pm last night, one ambulance, two paramedic officers and our Hazardous Area Response Team attended the scene.
"On arrival at the scene it became evident that the chemical had been also sprayed at two other locations, Tesco and McDonalds.
"In total, 15 patients self-presented to our members of staff, 14 of whom were discharged at the scene.
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"One patient, a man, was treated for symptoms at the scene before being taken to Russell’s Hall Hospital for further assessment."
A West Midlands Police spokesman added: "Following fast-track CCTV enquiries, detectives made several attempts to locate a suspect and the 20-year-old is currently in custody for questioning.
"Anyone with information should contact us via Live Chat on our website between 8am and midnight or call 101 anytime."