The US military says its attacks were intended to "further degrade Iranian military capabilities".

The US has denied Iranian accusations that it hit civilian infrastructure in the latest wave of air strikes since peace talks collapsed. Iran's state media and provincial authorities said bridges, a train station and an airport were hit. BBC Verify has confirmed an attack on a bridge in Hormozgan province. But a White House spokesperson told the BBC the US had "carried out strikes exclusively on military targets, including military logistics infrastructure". President Donald Trump has threatened to hit Iranian bridges and power stations to force Tehran to return to talks to end the war that began on 28 February with US-Israeli attacks - prompting Iran to retaliate against Israel and US targets and allies in the Gulf. Under international law, attacking civilians or civilian areas is illegal. However, in certain circumstances, civilian objects - like a bridge or a power plant - lose their protection if they are used to support the enemy's war effort. Iranian state media and local officials said Iranshahr Airport in south-eastern Iran, a railway station and six bridges in the Hormozgan province were hit on Thursday night - the sixth consecutive night of US strikes. BBC Verify and BBC Persian have verified footage of damage to Gariveh Bridge, after night videos showed a ball of flames on top of it. Daylight images showed a crumbled stretch of road with rubble around the broken bridge.