Both European and Asian markets opened slightly lower on Tuesday as investors brace for US President Donald Trump's deadline for Iran to either agree to a deal, or have their energy infrastructure targeted by air strikes.
The deadline falls at 8 pm Eastern Time (2 am CET), giving Iran until then to accept a deal that would keep the Strait of Hormuz open to all shipping or face what Trump has called the "complete demolition" of its civilian infrastructure, including every power plant and bridge in the country.
