A Ukrainian drone attack on the Black Sea port city of Novorossiysk overnight killed at least four people, including a child, Russian officials said Wednesday.

Veniamin Kondratyev, the governor of the Krasnodar region in southern Russia, said 29 others were injured in the drone attack.

Ukraine has frequently targeted Novorossiysk, a port city that is a major outlet for Russian oil and grain exports.

Earlier on Wednesday, the mayor of the city, Andrei Kravchenko, had said the debris from a Ukrainian drone fell onto several businesses and nearly landed on a residential building, sparking fires.

In the nearby town of Anapa, falling drone debris damaged three homes and a kindergarten, Kondratyev said, adding that there were no casualties.