Hello, welcome to bbc news now, three hours of fast moving news, interviews and reaction. King charles has been visiting a Cancer Treatment centre in london its his first major Public Engagement since his own diagnosis with the disease in february. He was accompanied by Queen Camilla on the visit, which aims to raise awareness of the importance oif early diagnosis. This was our first glimpse of the king a short time ago as he got out of his car and made his way into the Treatment Centre with the queen. Lets speak to our royal correspondent Sarah Campbell, whojoins us from University College hospital. What a hopeful day in the glorious spring sunshine, to see king charles, dare i said, looking very well. , ~ , well. Absolutely. I think there is cautious optimism well. Absolutely. I think there is cautious optimism and well. Absolutely. I think there is cautious optimism and the well. Absolutely. I think there is l cautious optimism and the palace well. Absolutely. I think there is caut