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Five people have died after Russia attacked a TV tower in Kyiv, hitting nearby broadcast facilities. It comes after Russia warned residents that it was preparing to hit targets in the Ukrainian capital. It said it was planning attacks on Kyiv technology centres, urging people to stay away. We hear from the journalist Igor Kossov there. Russia has also continued its onslaught against the north-eastern Ukraine city of Kharkiv. Olga Shapoval is executive director of the city's IT cluster, and tells us what life is like for people there now.

Apple has stopped all product sales in Russia. The tech company also limited Apple Pay and other services in the country, and removed state-backed news outlets RT and Sputnik from its App Store outside Russia.

Plus, Ukraine is one of the world's top wheat exporters. We explore what impact Russia's invasion of the country could have on global food security with David Laborde, a senior research fellow at the International Food Policy Research Institute in Washington DC.

And, the role of China in the Ukraine crisis appears to be shifting. Before the Beijing Olympics Presidents Putin and Xi Jin Ping declared that that the friendship between Russia and China had 鈥渘o limits鈥�. However, China on Tuesday said it was extremely concerned about the harm to civilians inflicted by the invasion. We hear from Yun Sun from the Stimson Center in the US.

Presenter Jamie Robertson is joined by guests Kimberly Adams and Shuli Ren.