The mayor of Nice says it is a terrorist incident and one person has been arrested.
A cross-party group starts legal action, claiming ministers failed to protect UK democracy.
Two of the continent’s biggest economies impose strict restrictions amid dire warnings over Covid-19.
A boy, 15, was also injured when the rope holding their parachute snapped, the Greek coastguard says.
The president says Mr Biden will cancel family gatherings, while the Democrat pledges to follow science.
The order came after two days of looting and violent unrest sparked by the shooting of Walter Wallace Jr.
The shooting and its aftermath were guaranteed to ratchet up tensions in a country already on edge. Debates about how to improve police accountability have been complicated by looting.
Relatives are “desperate” for news of the youngest child, a baby, after a boat bound for the UK sank.
Financial markets in the US and Europe fall as concerns rise about the coronavirus impact on economic growth.
The storm, which was upgraded to a Category 2 hurricane, is expected to make landfall on Wednesday.