Unconfirmed reports on social media claim there is a man with a weapon in Ruff Woods, off Ruff Lane, Ormskirk.
Police are yet to issue any information, but have been in touch with staff at the nearby university.
A statement issued to staff this morning said: “Due to a police incident taking place in and around Ruff Woods this morning, on their behalf we are informing all staff and students to avoid the area until further notice.”
Ruff Lane is said to be blocked by police half way between Mill Street and Ormskirk Hospital back entrance.
A spokesman for the North West Ambulance Service confirmed they attended a private address in the local area at 8.49am, but have now left the scene and nobody was taken to hospital.