A cannabis farm has been uncovered at a house after a raid by police.
Officers found 30 plants when they executed a warrant on Waterland Lane in Parr at around 7.45am on Friday.
Police are investigating and enquiries are ongoing to locate the occupant.
A Merseyside Police spokesman said: "Information from the public is vital, so we can continue to target cannabis cultivation and drug dealing in our communities.
"I’m sure no-one would like to live next door to these potential death traps and I'd ask again if you believe someone is using a property for this purpose, please tell us so we can take action and find those responsible for setting them up."
Some of the signs that cannabis is being grown include strange smells and sounds; frequent visitors to the property; gardening equipment being taken inside; windows sealed and covered or curtains permanently closed; heat from an adjoining property; and birds gathering on a roof in cold weather.
Anyone with information is asked to call police on 101 or Crimestoppers, anonymously, on 0800 555 111.