A man has been robbed of his phone.
The 31-year-old was targeted in Eriswell Road, Worthing, by two men at 2.30am on Saturday.
The suspects have been described as black.
One was thin and wearing a black hooded top with red piping.
The second was wearing a white top with a square pattern.
Detective Constable Sarah Thurgood said: "Although the victim was not hurt, he has been left very shaken by the incident.
"If you were in Worthing town centre early last Saturday morning and saw these men or anything of what happened, please contact us."
Call Sussex Police on 101.
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