Fighting intensifies in Yemen

Iran-backed Houthis claim they hit several targets in Saudi Arabia, including Riyadh Airport, while Saudi-led forces attacked Houthi military strongholds on the Red Sea coast. The Yemeni government has launched an offensive against the Houthi-held capital, Sanaa. Also: Student demonstrations intensify in France ahead of a national day of protests. The Nobel Prize in Medicine is awarded to Karl Deisseroth from America and Peter Hegemann and Georg Nagel from Germany for their work in the field of optogenetics. Russia downplays reports that a lab technician who died last week may have been exposed to pneumonic plague. The bestselling British author and politician, Jeffrey Archer, has died. A concert pianist invents a "Standing Grand" piano and dust off your CV if you'd like to be Finland's official 'smeller'.

Photo: Saudi-backed Yemeni government fighters advance against the Iran-backed Houthis, near Dhubab.

Credit: Southern Giants Brigades/Reuters