Windows were smashed and mysterious graffiti daubed on the wall of a city church.
Vandals trashed St Oswald RC Presbytery in Old Swan, breaking six windows and writing in chalk the word "BEAST".
The windows have now been boarded up at the church presbytery in St Oswalds Street.
Police received a report of the criminal damage at 11.10am on Saturday.
Officers think the yobs struck sometime between 1.30am and 10am yesterday.
A Merseyside Police spokesman said: "Enquiries into the incident are ongoing and anyone with information is asked to direct message @MerPolCC on Twitter, or call 101 quoting incident reference 19100427656 or Crimestoppers on 0800 555 111."
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