The FBI warned of bomb threats at polling stations in “multiple” US states on Election Day, adding that none were credible but many appeared to originate from Russia.

The statement from the Federal Bureau of Investigation came as authorities in the US state of Georgia said bomb threats had briefly disrupted voting on Tuesday.

The 2024 US presidential campaign has been a particularly volatile one, and security for Election Day had been ramped up to unprecedented levels given concerns over possible civil unrest, election chicanery and violence against poll workers.

The FBI said it  is aware of bomb threats to polling locations in several states, many of which appear to originate from Russian email domains,” spokeswoman Savannah Syms said in a statement.