more thani million people, most of them jewish, were murdered at the camp in occupied poland. today is holocaust memorial day. and to mark it, different artists have painted the portraits of some of the uk s last remaining holocaust survivors. the project was commissioned by prince charles and the people have been encouraged to light candles in their windows at eight o clock tonightjust as candles in their windows at eight o clock tonight just as we speak. and at gatherings including here in central london if you can see and we have seen shots all around the country with buildings as you can see from our shots across central london many, many taking part in this lighting up in purple to mark this lighting up in purple to mark this day. our correspondent is that one of those very special events at piccadilly circus innocenti centre of london.