today at 4pm my 14 year old son was asked for his oyster card and phone which he immediately surrendered. Police informed, everythng cancelled but just to warn. He was on his phone. Robbed by older boy, tall, thin, round 17, mixed race, blue and grey cap, blue zip up, who asked which school he went to, accompanied by white girl with blonde hair, tallish, slender who melted away just before the encounter. Son ok, did sensible thing.