Police are investigating after graffiti was discovered on an historic Lancashire castle yesterday (25 July).

Several yellow drawings, including crosses and smiley faces, have been graffitied onto the rear walls and floor of Lancaster Castle.

Joshua Brandwood, from Lancaster, shared pictures of the vandalism to social media and logged the incident with police.

Lancashire Telegraph: Graffiti on Lancaster Castle. (Photo Joshua Brandwood)Graffiti on Lancaster Castle. (Photo Joshua Brandwood)

He said: “It’s a real shame that our beautiful castle has been vandalised.

“Given the castle’s age and historical significance as a listed building it will likely be costly and time consuming to remove the graffiti without affecting the stone.”

Since posting the pictures to social media they have caused a stir.

Lancashire Telegraph: Graffiti on Lancaster Castle. (Photo Joshua Brandwood)Graffiti on Lancaster Castle. (Photo Joshua Brandwood)

“Disgusting behaviour – no respect whatsoever,” said Janine Chappell.

“I hope they catch this person. There is no reason to do this,” said another.

Anna Woods said: “Disgusting how can people do this. This needs to be sorted out.”

“Some people have no respect for the past or for historic buildings,” said another.

"If they were made to clean it off they wouldn't be so eager to 'tag' anything ever again.”

Lancashire Telegraph: Graffiti on Lancaster Castle. (Photo Joshua Brandwood)Graffiti on Lancaster Castle. (Photo Joshua Brandwood)

Lancaster Castle, on Castle Grove in Lancaster, dates back almost 1,000 years.

This Grade 1 Listed Building occupies a city-centre hilltop location on the site of three successive Roman forts and has been described by English Heritage as "not only the North-West's most important historic and archaeological monument but also of international importance".

If members of the public have any further information that will assist the police they can report online or via the 101 non-emergency line.

The incident has been reported to Lancashire police and a spokesperson said enquiries are ongoing.  

Lancaster Council has been approached for comment.