Police appealed for the public's help after a man was allegedly seen performing a sex act on a Lancashire bus.
The incident reportedly happened on a bus in the Ramsbottom area as it headed towards Haslingden shortly before 5pm on March 10.
Officers have now confirmed they have identified a man they would like to speak to following an earlier appeal.
A spokesperson for Lancashire Police said: "Further to our earlier appeal, we have now identified a man we would like to speak to.
"It followed reports a man had been seen touching himself inappropriately on a bus travelling towards Haslingden."