Uncertainty still surrounds what happened with the missile that struck the village of Przewodów in Poland, around four miles from the Ukrainian border, which killed two farm workers last night. President Joe Biden has said that the missile’s trajectory means it is ‘unlikely’ it was fired from Russia. At the moment, it is unclear whether it was a missile fired by Russian forces in Ukraine, one knocked off its course by a Ukrainian interception – or a Ukrainian air defence missile gone astray.