Trump wins New Hampshire state in key presidential primary contest

Former US president Donald Trump has won the primary contest in New Hampshire but his rival, Nikki Haley, says she is still in the race for the Republican presidential nomination.

Dozens are reported killed as battle rages in Khan Younis in the Gaza strip; earlier the UN Secretary General, Antonio Guterres, told the Security Council that any refusal to accept the two-state solution to the Israeli-Palestinian conflict must be firmly rejected - we hear from one of the aid agencies operating in the war-torn territory.

And why India's capital Delhi needs the help of its rural neighbours to finally beat its killer smog problem - we take the pulse of the health of air quality in the world's most populous country.