[ See also: Planning a break up? Don't do it on Facebook ]
Social networkers that see potentially suicidal messages on Facebook can report the post through a link on the social network's help pages. They'll be asked to include the name and other details such as any networks the user at risk belongs to in the report, which is then passed onto the Police and the Samaritans if Facebook believes there is an immediate risk of someone harming themselves.
The Facebook users that makes the report will also be given the contact details of the Samartians if they wish to seek further advice on dealing with the issue.
"Samaritans have worked with Facebook to put in place a system that enables people to help their friends get help," the social network said.
According to Catherine Johnstone, Chief Executive of the Samaritans Facebook is a part of daily life for so many of us. "We must make sure that people online have support when they need it."
"We are harnessing the power of friendship so people can get help - as a friend you are better placed to know whether someone close to you is struggling to cope or even feeling suicidal."
The Samaritans is also running a suicide awareness campaign through its Facebook page that aims to offer advice to social networkers on how to deal with vulnerable friends.