Police believe a man spoke to a distressed woman in Branch Road, Lower Darwen, at approximately 2.30am on Saturday, April 8.<br /><br />Officers on Tuesday (May 30) released CCTV footage of the man as they believe he could be a key witness in a rape investigation.<br /><br />A spokesman for Lancashire Police said: “We want to speak to you about the nature of the conversation to get a fuller picture of what was said.”<br /><br />It is believed the man was walking from the direction of the A666 along Branch Road towards Duchess Street.<br /><br />The appeal came after a 33-year-old man from Blackburn was arrested on suspicion of rape.<br /><br />If you are the man in the CCTV footage or if you know who he is, contact police by calling 101 or 01254 353553, quoting 426 of April 8, 2023.