A 17-year-old right-wing extremist can be named after he pleaded guilty to terror offences.
Oskar Dunn-Koczorowski, from west London, admitted two charges of encouraging terrorism at the Old Bailey on Thursday.
The charges relate to publishing messages on social network Gab in August and September.
His co-defendant, Polish national Michael Szewczuk, 18, from Bramley, in Leeds, is yet to enter pleas to five counts of encouraging terrorism and three counts of disseminating terrorist publications.
The judge, Mr Justice Sweeney, set a provisional trial date of May 13 in Manchester, with a plea hearing on April 15.
Their case will next be heard on February 25 at the Old Bailey.
Both were released on conditional bail.