In today’s newsletter: ​The brief US effort to ​s​teer trapped vessels through the ​waterway ​put the fragile ceasefire under strain

Good morning. Uncertainty once again reigns in the Middle East. The uneasy ceasefire between the US and Iran threatened to disintegrate after Donald Trump launched an initiative – dubbed “Project Freedom” – to help thousands of sailors stranded in the Gulf by the war to pass through the strait of Hormuz.

To Iran, the announcement was a cynical provocation. Flurries of fighting restarted as Iran sought to maintain its grip on the critical passageway out of the region.

UK politics | Zack Polanski falsely claimed to be a spokesperson for the British Red Cross while campaigning for the Green party leadership, the charity has said.

Fuel shortages| Two million airline seats have been cut from this month’s schedules as airlines redraw their operations because of soaring jet fuel prices amid the Middle East conflict.

UK news| A British crew member who became ill after a suspected outbreak of hantavirus on luxury cruise ship the MV Hondius is to be medically evacuated, officials have said.

Tax | An increased windfall tax should be imposed on the UK’s largest banks, say trade union leaders, after the big four lenders reported almost £14bn in first-quarter profits, partly fuelled by market turbulence amid the Iran war.

Society | People from black backgrounds in England are twice as likely to experience strokes as their white counterparts, while also being less likely to receive timely care, according to the largest study of its kind.