People worried that their Facebook friends are suicidal will be able to alert the Samaritans via the social networking site.

It comes after the friends and family of a Brighton woman who announced on Facebook that she would be taking her own life demanded to know why no-one helped her.

Simone Back, 42, was pronounced dead in hospital on Boxing Day less than 24 hours after threatening on the website to take an overdose.

For more on this story see tomorrow's Argus.