Security officials said separately that parcels that exploded at logistics depots in Europe were part of a test run for a Russian plot to trigger explosions on cargo flights to the United States.
Russia cautiously optimistic about Trump; hopes for reduced US aid to Ukraine.
Moscow called US intelligence agency's claims of Russian interference 'malicious slander'.
Israeli-Canadian racing driver Joshua Cartu detained in St. Petersburg for alleged large-scale fraud linked to binary options scheme.
Her supporters say she had donated $51.80 to Razom for Ukraine, a New York-based charity that provides humanitarian aid to children and elderly people in Ukraine.
Gershkovich, a 32-year-old American who said the allegations against him were false, went on trial last month in the city of Yekaterinburg.
President Vladimir Putin has said Russia is open to a prisoner exchange involving Gershkovich and that contacts with the United States have taken place but must remain secret.
The official, briefing reporters on US election security, did not name the former president and presumptive Republican nominee when asked who Moscow wants as the next US president.
The increase of $10.7 billion is largely attributed to an increase in the United States’s defense budget.
"We are aware of reports of US citizens being arrested inside of Russia," a spokesman said. "Consular officers from the embassy always seek to aid citizens with appropriate assistance."