deemed a potential risk. in freezing iowa, the race for the white house officially gets under way, as republican supporters vote for a presidential candidate. and new images of the volcanic eruption in iceland, which has set homes on fire and forced thousands to evacuate. and on newsnight at 10.30, we'll go deeper behind the headlines and speak live to key players on today's big stories, plus a first look at tomorrow's front pages. good evening. as another houthi missile struck a cargo ship in the red sea today, qatar became the latest country to stop its gas tankers from using the route. the disruption to international trade by the attacks in the red sea are dominating this year's annual gathering of business and political leaders in davos in switzerland.