US President Joe Biden has given Ukraine permission to use American-supplied weapons to strike targets in Russia, but only near the Kharkiv region, US officials say. One told BBC News his team had been directed to ensure Ukraine was able to use US weapons for "counter-fire purposes" to "hit back at Russian forces hitting them or preparing to hit them". Russian forces have made gains in the Kharkiv region in recent weeks after a surprise offensive in the area, close to the border with Russia. On Friday, Ukrainian officials said three people had been killed and 16 injured in Russian...
