The shaky ceasefire between the US and Iran has been tested further, with American forces targeting Iranian drones and radar sites, and Iran firing missiles at US bases in the Gulf.
The US military said it had shot down four Iranian "one-way attack drones" launched towards the Strait of Hormuz, which it said "posed an immediate threat to regional maritime traffic". US forces "subsequently struck Iranian coastal surveillance radar sites" in the south of the country.
Iran retaliated by firing ballistic missiles at two US air bases in Kuwait, and facilities of the US Navy in Bahrain, according to Iran's Irib news agency. US Central Command said of the seven Iranian missiles fired at the two Gulf states, six were intercepted and one did not reach its target.
This comes several days after the US and Iran exchanged strikes in an escalation that threatened the ceasefire in place since April. Iran's Islamic Revolution Guard Corps (IRGC) denied responsibility for the earlier airport strike, claiming the damage was caused by an error from a US missile interceptor.
Even with the conflict continuing, the US has granted visas to Iran's World Cup football team ahead of their first match in Los Angeles on 15 June.
The attacks occurred as ceasefire negotiations stalled, with a deal to end the war failing to advance, and US media reporting that President Trump had requested changes to the terms of an agreement.
The US and Israel launched wide-ranging strikes on Iran on 28 February, sparking conflict across the Middle East. Iran responded by attacking Israel and US-allied states in the Gulf, and effectively closing the Strait of Hormuz, through which around 20% of the world's oil and liquefied natural gas travels.
The closing of the strait sent oil prices soaring globally.