The Prime Minister of Poland has called an emergency meeting following the explosion. Two people have been killed in Poland after two stray Russian rockets landed near the border with Ukraine. The rockets landed in the NATO state following Russia's mass bombardment of Ukrainian cities earlier today, which saw over 100 rockets launched. According to the AP news agency, a senior US intelligence official said that the missiles were of Russian origin. Poland's Prime Minister, Mateusz Morawiecki, has convened the Committee of the Council of Ministers for National Security and Defense Affairs "as a matter of urgency", government spokesman Piotr...