Twitter and Facebook summoned to court as social media users warned against sharing images of Boy A and Boy B

It follows the high profile Ana Kriegel trial, with reports of photographs of the two 14-year-old boys convicted of her murder being shared online.

A judge at the Central Criminal Court has warned that it is an offence to publish anything identifying the two boys convicted of Ana Kriegel's murder and anyone who does so will be "treated in the most serious fashion".

Representatives of Twitter and Facebook will appear in court tomorrow after it emerged that social media users had identified the 14-year-old boys despite an order by the trial judge preventing their being named and a provision under the Children Act that prohibits the identification of minors accused or convicted of a criminal offence.