Missile that hit Poland likely came from Ukraine defences, say Warsaw and Nato

The explosion initially raised global alarm that the war could spill into neighbouring countries, but after an emergency meeting of western leaders at the G20 summit in Bali, the US president, Joe Biden, said the missile was probably not fired from Russia.

Russia, which on Tuesday unleashed a wave of missiles targeting Ukrainian energy infrastructure, said the explosion was caused by a Ukrainian air defence missile. Its strikes had been no closer than 35km (22 miles) from the Polish border, it said.

The British foreign secretary, James Cleverly, said the UK would not rush to judgment until the outcome of the full investigation was clear.