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Theses CCTV images have been released by police whose officers are investigating a reported assault.
It is alleged that at about 7.50pm on July 24, a man in his 60s was assaulted by a group of people on the beach near to Prince of Wales Terrace.
Since the incident a number of enquiries have been carried out to identify the suspects.
Officers are now appealing for the people in these images, or anyone who knows who they may be, to come forward.
Anyone with information should contact Kent Police on 01843 222289 quoting ZY/33907/17. Alternatively contact Kent Crimestoppers, anonymously, on 0800 555111.