The police helicopter was mobilised after thieves attempted to steal a car in Chorley last night.
Officers were alerted to reports of an attempted car theft at around 3am on Corporation Street.
A spokesman for the police said: "We were called to reports that somebody was attempting to break into a car in Chorley.
"Officers attended. Two men made off from the scene. We made a search of the area, but no arrests were made."
Anyone with information can contact police on 101 quoting log reference 120 of May 17.