A drone was shot down in Dzhankoi in Crimea, a Russian-installed official in the peninsula that Moscow annexed from Ukraine in 2014, said on Sunday.
"There is damage to windows in several houses in a residential district" from the overnight incident, Oleg Kryuchkov, an adviser in the Moscow-installed administration of Crimea, posted on the Telegram messaging app.
"All services are working. Official information - in the morning," he said.
Reuters could not independently verify the report.
Russia has a military air base near Dzhankoi. Ukrainian officials have long said the city and surrounding areas have been turned into Moscow's largest military base in Crimea.