A woman has been arrested after a man was injured in an incident involving a "chemical substance".
Fletcher Close was closed off on Sunday morning as emergency services attended the incident.
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A Sussex Police spokesperson said: "Emergency services responded to incident involving a chemical substance which took place at an address in Fletcher Close, Southgate, Crawley on Sunday 13 September at around 5.10am.
"There is no wider risk to the public.
"A 40-year-old man has been taken to hospital to be treated for injuries, and a 40-year-old woman has been arrested on suspicion of grievous bodily harm. She has been taken to hospital as a precaution.
"A temporary road closure was in place in Fletcher Close while emergency services remained at the scene."
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