A grassed area in Stevenage is cordoned off following a report of a young woman being sexually assaulted last night.
The cordon is near Silam Road, with an investigation launched after police were called just before 11.30pm.
A police spokeswoman said the victim was aged in her 20s, and is being supported by specialist officers.
Anyone with information that could help the investigation should call police on 101.
Alternatively call Crimestoppers anonymously on 0800 555 111, or use their anonymous online form at crimestoppers-uk.org.
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