Aiming for the White House face their first electoral test in the state of iowa. And denmark has a new king, after Queen Margrethe abdicates as europes longest reigning monarch. Live from our studio in singapore, this is bbc news. Its newsday. Hello and welcome to the programme. We begin with the latest from iceland, where a volcano is erupting in the southwest of the country. Youre watching live pictures from the area and while its now dark there, you can still see lava glowing and smoke rising into the sky