Ukraine's air force said it had shot down 24 of 26 drones launched from Russia overnight over four regions, according to a statement posted on the Telegram messaging app.
Falling debris in the southern Odesa region injured one person and damaged 20 homes and four garages, according to regional governor Oleh Kiper.
Drone debris in the southern region of Mykolaiv caused a fire at a food enterprise that was put out, regional governor Vitaliy Kim said.
The governor of the westerly Ivano-Frankivsk region, Svitlana Onyshchuk, said authorities were dealing with the attack's aftermath, but did not disclose details, except to say no one had been injured.
Ukraine's energy ministry said Russia had attacked energy infrastructure in six regions over the past day, and damaged industrial infrastructure in the Ivano-Frankivsk region.
The governor of the central Khmelnytskyi region reported no damage following the attack.
The air force revised an earlier statement to exclude a reference to air defences being activated in the Kherson region, in the south.
US President Donald Trump said an angry Israel "violently lashed out" and attacked Iran's major gas field, a significant escalation in the US-Israeli war, but ruled out further such attacks by Israel unless Iran retaliated further.
Saudi Arabia reserves the right to act militarily against Iran and any trust with Tehran has been shattered, the Saudi foreign minister Prince Faisal bin Fahran said early on Thursday, after Riyadh was targeted by Iranian ballistic missiles.
QatarEnergy announced that several liquefied natural gas (LNG) facilities in Ras Laffan Industrial City were subjected to missile attacks early Thursday morning, causing fires and further serious damage, in addition to the previous attack on Ras Laffan Industrial City on Wednesday, which severely damaged a gas-to-liquids conversion plant.
Qatar’s Ministry of Foreign Affairs has declared Iran’s military and security attachés in Doha persona non grata, ordering them, along with their staff, to leave the country within 24 hours.