The murals have been popping up for over a year.
A Laois Tidy Towns Team is trying to track down a mystery artist.
Alien murals have been appearing around Portlaoise, with some featuring the signature of an artist known as 'pancake.'
The first sighting was over a year ago, but now there are many more little green men popping up in different locations across the town.
Vincent Booth, of Portlaoise Tidy Towns, says they are in favour of murals but in a more controlled way:
Minister For National Drugs Strategy Pledges Gardai Drug Specialists
Offaly Chef Criticises Government School Lunches
Offaly GAA Club Hosting Drive-In Bingo This Weekend
Laois County Council Launch Bat Lovers Group
Argentine Ambassador To Visit Westmeath Library
Westmeath Children's Charity Awarded For Sustainability
Longford-Westmeath TD Condemns Explicit AI Images
Jury Delivers Not Guilty Verdict By Reason Of Insanity In Laois Murder Trial
Westmeath Matchmaker Shares Top Valentines Day Tips
Farmer Concerns Mount Over Slurry Storage Capacity
Jury For Laois Murder Trial Told Evidence Points "One-Way"
Scene Of Offaly Crash Cleared
Family Of Midlands Man Seek Answers On Psychiatric Care System Gaps
Westmeath Mansion Worth Over €1.7m Hits Housing Market
Laois Councillor Criticises Government Response To Flooding
Laois Protesters Host Anti-Hunt Ball
Midlands 103 Reaches 112k Weekly Listeners In Latest JNLR Report
Longford-Westmeath TD Calls For Changes In ADHD policies
HSE Midlands And Dublin Record Highest Number Of STI's
Laois Heritage Society Launches Spring Talks With Evening of Folklore