Russia's President Vladimir Putin has vowed to "fiercely and consistently continue the fight against terrorists until their complete annihilation" following the twin suicide bomb attacks on the city of Volgograd.
A second suicide bomber has struck in the Russian city of Volgograd, killing at least 14 people.
The target was a bus - packed with commuters - in the morning rush-hour.
On Sunday, 17 people were killed by an explosion at the city's train station. Security is now a major concern, with the Russia's Winter Olympics just six weeks away.
ITV News Correspondent Neil Connery reports:
The Democratic presidential candidate may also have shown his cards on his choice of running mate.
The US president also shared a post on Twitter accusing Dr Anthony Fauci of misleading the public over hydroxychloroquine.
Fears over an impending second wave of coronavirus dominates Wednesday’s front pages.