Two men have been detained by police in the Blue Mountains as the Duke and Duchess of Cambridge toured the area that was ravaged during last year's bushfires.

Inspector Joel Murchie, who is in charge of the police operation, confirmed that two men were detained and "moved on" by police in the vicinity of Buena Vista Road in Winmalee on Thursday.

Police officers were seen searching the men, who were apprehended as the royal couple were driving away.

A NSW Police spokesman was unable to provide further details.

It comes as serial pest Peter Hoare was due to appear in court on Thursday after being arrested at Hamilton railway station in Newcastle on Wednesday.

Police allege Hoare was making his way to Sydney to disrupt the royal visit.

He was charged with being a convicted person found with intent to commit an indictable offence.

More to come