Steve Witkoff says the working-level talks will cover post-war security and humanitarian efforts, and US negotiators will meet European and NATO representatives in Brussels.
After a student-led list won the Oct. 25 vote, Vucic accuses the winners of "revolutionary terror" and says he is not afraid of arrest.
Ukraine's Air Force says there was no radiation threat, and Russia's Emergencies Ministry reports a separate cyberattack that sent false information to the public.
Russia also launched 289 drones, 17 ballistic and 59 cruise missiles overnight, Zelenskyy says, ahead of U.S.-mediated talks in Abu Dhabi.
The US Embassy had warned of a credible mass casualty threat at the Tsaritsyno Museum Reserve, which closed temporarily on Saturday, Oct. 31.
Zelenskyy welcomes the approval but warns deliveries may take years, and the State Department says no US funds are involved.
The airline forecasts a fuel bill about €2bn higher because of the Middle East conflict and says higher fares are unlikely to fully offset it.
The election commission put her at 57.6% to 39.5% for pro-Western challenger Andrey Gyurov, who conceded and said the result must be accepted.
No one has claimed responsibility, and the incidents follow a similar attack on hundreds of French supermarkets in October.
Youth-led protests over living costs and schools also turned violent in parts of Germany, and Portuguese police cleared a Lisbon tent camp.
Poland's president turned back from a trip to Senegal and entered the building, while Prime Minister Donald Tusk says restoring the rule of law is a duty.
The White House says first lady Melania Trump brokered the truce in Oleshky. Ukrainian and Russian officials report no violations in the first 30 hours.
Spain's transport minister says a computer failure halted trains, then the control centre let one move again without speed limits, a decision he calls inexplicable.