A woman was allegedly assaulted by a man who also punched another man trying to help her.
Police are appealing for information after the incident which happened on the Esplanade in Seaford.
A spokesman for Sussex Police said: "It is alleged that a woman was assaulted by a man known to her between 7pm and 9pm on March 30 on Esplanade. They were travelling in a small, dark hatchback before the incident.
"A man reportedly got out of a van to help the woman, and then was also punched by the suspect."
If you witnessed the incident, or have any information, contact police online or call 101 quoting serial 1299 of 30/03.
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