Facebook takes the safety of its users very seriously and takes significant efforts to make sure that the interactions encountered on the site are done so in a safe manner. We strongly urge all users to report suspicious people and inappropriate content when they come across it on the site. You can notify Facebook of any inappropriate people or content by clicking on the "Report" link located throughout the site. Users under the age of 18 are also encouraged to talk to a parent or a responsible adult immediately if someone online says or does something to make them feel uncomfortable or threatened in any way.
If you are living in the United Kingdom, under 18, and believe that an adult is acting inappropriately towards you on Facebook, please submit an online report to the Child Exploitation and Online Protection Centre (CEOP):

(If you are a parent or other adult and concerned about a minor, you can also submit a report by clicking on the link above.)
More information about safety on Facebook can be found here
If you are living in the United Kingdom, under 18, and believe that an adult is acting inappropriately towards you on Facebook, please submit an online report to the Child Exploitation and Online Protection Centre (CEOP):

(If you are a parent or other adult and concerned about a minor, you can also submit a report by clicking on the link above.)
More information about safety on Facebook can be found here