A huge cannabis farm worth almost £1million was discovered after police raided a small terraced house.
The massive haul was discovered inside a property on Albert Edward Road after Merseyside Police executed a drugs warrant.
Inside the Kensington home, police found a total of 230 plants, three bags of dried cannabis, growing equipment and discovered the electricity had also been abstracted.
The cannabis farm would have had an estimated annual yield of £920,000.
Four men - aged 19 from Anfield ; aged 30 from Huyton ; aged 32 from Seacombe ; and aged 32 from Toxteth – were arrested on suspicion of production of cannabis and possession with intent to supply cannabis.
The 19-year-old was also arrested on suspicion of possession of an offensive weapon.
They have been taken to a police station to be interviewed.
Detective Inspector Graeme Towndrow said: "The discovery of this cannabis farm means the drugs seized will now not make it to the streets of Merseyside, and the proceeds from it will not line the pockets of criminals.
"While our officers will continue patrols to combat crime in our communities and detect farms such as this, our communities can also help us stop criminal groups involved in cultivating cannabis from turning houses like this one into potential death traps for themselves and their neighbours.
“Nobody wants to live next door to these places and we would ask that if you suspect someone is using a property for this purpose, please tell us so we can take positive action and find those responsible for setting them up.
"These farms will generally have a number of hot lamps hooked to overloaded electricity sockets as well as an extensive watering system.
"Electricity and water are never a good combination, and the fire service has attended fires that have resulted from fires caused by the crude systems put in place by the people who set up these farms."
Anyone with any information can contact @MerPolCC, call 101, or contact Crimestoppers anonymously on 0800 555 111.