A 32-year-old man is wanted by police in connection with an assault in Chorley.
Officers would like to speak to Rick Endl after a woman was attacked in the early hours of the morning of February 28.
The victim suffered an arm injury and was taken to Royal Preston Hospital for treatment.
Officers want to trace Endl and are appealing to anyone with information to contact officers.
A Lancashire Police spokesman said: “We are urging anyone who can assist with our enquiries to contact police immediately.
“We would like to speak to Endl in connection with an alleged assault in Chorley.
“If you know where he is, please call us.”
Anyone with information can contact police on 101 quoting log reference 0181 of February 28.