US President Donald Trump has used the Nato summit to criticise the lack of support for his war on Iran, and revive his interest in taking over Greenland.
US President Donald Trump is in Turkey attending a Nato summit following a ramp up in tensions between the US and Iran.
The latest trading of strikes were not the only topic of discussion at the summit, defence spending and Trump's reiteration of his interest in purchasing Greenland were also brought up.
The BBC's Frank Gardner explains how the latest developments have cast a "black cloud" over discussions of unity at the summit.
The Super Bowl-style show marks the Canadian singer's latest big performance after his comeback shows at Coachella.
Explosions have been reported by Iranian state media in parts of the country's south.
The weapon has not been brought back to the UK and has instead been left with British officials in Turkey.