The message comes after a recent spate of pitch incursions which have risked both player safety and criminal proceedings.
Fans are reminded invading the pitch risks arrest and prosecution, and any supporter found guilty faces a lifetime ban from Anfield.
Behaviour of this kind also risks penalties to the club from the relevant authorities.
Players have also been instructed not to interact or hand over shirts to anyone who invades the pitch.
If a player wishes to provide shirts to supporters in special circumstances, the club will work with them on this through the relevant departments.
Thank you for your continued support in keeping Anfield a safe and welcoming environment for all fans.