Five women were involved in an affray in Letchworth following a dispute over parking on Monday.
At around 11.25am, police were called following the dispute in Rushby Mead, with two women sustaining minor injuries in the physical altercation.
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"As part of our enquiries, I would like to hear from anyone who may have witnessed or filmed the incident or has any information which may assist us," PC Joe Massey said.
"If your vehicle was in the area at the time and you have a dash cam fitted, I would encourage you to please review the footage as you may have captured something that could help us with our investigation."
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You can report information online at herts.police.uk/report, via online web chat at herts.police.uk/contact, or by calling the non-emergency number 101, quoting crime reference 41/41074/23.
Alternatively, contact Crimestoppers anonymously on 0800 555 111 or online at crimestoppers-uk.org.
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