Alex is the longest-serving on-screen journalist on C4 News since the channel began. In more than 25 years he's covered over 20 wars; led major investigations and continues to front the programme from around the world.
His journalism has won several BAFTA and EMMY awards; two New York Film and TV Awards and in 2011/12 he was named TV Journalist of the Year by the Royal Television Society.
He's written two books about the 1991 Gulf War and a travelogue about cycling across India.
He has been External Examiner at Cardiff and currently Bournemouth Schools of Journalism and is Honorary Fellow in Journalism at Falmouth School of Journalism.
Our chief correspondent Alex Thomson is in Poltava in central Ukraine.
The Ukrainian government says it is investigating reports about the use of chemical weapons in the city of Mariupol.
Ukrainian president Volodymyr Zelenskyy says Russia is preparing thousands of troops for a renewed assault on the country’s east, as the Russian foreign minister confirms there will be no ceasefire during peace talks.
Our chief reporter Alex Thomson is in the Ukrainian capital for us now.
Yesterday Slovakia, a Nato member, announced it would supply air defence missile systems to Ukraine.
It was billed as a surprise visit to show solidarity with the Ukrainian people.
When a history is written of the first two months of Russia’s invasion of Ukraine, the massacre of people waiting to flee at Kramatorsk station will no doubt feature.
During weeks of Russian occupation the Ukrainian town of Trostyanets was systematically destroyed.
Mass graves, civilians tortured and shot, an entire town virtually obliterated as residents took whatever shelter they could.
Ukraine’s defence ministry has warned that Russia is preparing to launch a new assault in the east to try and take the city of Kharkiv.
Ukraine’s second city of Kharkiv came under shell attack again today, killing seven people and injuring dozens of others.
Our Chief Correspondent Alex Thomson is in Kharkiv, Ukraine’s second city, which is partially surrounded and under attack by Russian forces.
The Ukrainian government says it has retaken over 30 towns and villages near the capital Kyiv from Russian forces, who have left behind scenes of death and destruction.
Ukrainian troops have been reclaiming a swathe of territory from Russian control, especially around the capital Kyiv
There’s been more heavy shelling around the capital, Kyiv today despite Moscow’s claim to be “de-escalating” operations around the city with fighting in some of the suburbs which Ukrainian troops have seized back from Russian control.