Police blocked off the road in Whittingham Lane, outside the Splash 2 car wash, whilst Task Force officers raided the business in the afternoon.
Traffic travelling along Whittingham Lane was diverted via Short Lane and Langley Lane whilst officers searched the premises.
Lancashire Police confirmed that a cannabis farm has been discovered, but has not released any further details.
The force told the Post it will provide a statement on the raid later today.
More to follow...