Authorities are looking for a man they say sexually assaulted and robbed a woman in a secluded area of Hyde Park.

Just after midnight on Wednesday morning, officers responded to a call of a sexual assault near the corner of Cummins Highway and Rosewood Street, police reported.

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At the scene, authorities spoke to a woman who said she was walking home when a man grabbed her, forced her into a secluded area and sexually assaulted her, officials said. She added that the man demanded money and emptied her wallet after the assault.

Police described the suspect as a black man who was approximately 6-foot-1 with a thin build. He was last seen in a dark green hoodie and dark pants, driving a newer model red car.

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The Boston Police Sexual Assault Unit was actively investigating the incident, authorities said. Anyone with any information should call detectives directly at 617-343-4400.