A drone attack set ablaze parts of an oil products reservoir at a refinery in southern Russia, but emergency services said they extinguished the fire just over two hours later, TASS news agency reported early on Thursday.
TASS said the incident occurred at the Ilsky refinery near the Black Sea port of Novorossiysk in the Krasnodar region.
A day earlier, a fuel depot further to the west caught on fire near a bridge linking Russia's mainland with the occupied Crimea peninsula.
"A second turbulent night for our emergency services," Krasnodar governor Veniamin Kondratyev wrote on Telegram, adding that tanks with oil products were on fire at the Ilsky refinery.
There were no casualties, he said, citing preliminary reports and he did not say how the fire started.
Ukraine rarely claims responsibility for what Moscow says are frequent drone strikes against infrastructure and military targets, particularly in regions close to Russia.
Moscow blamed Ukraine for an attack on April 29 that set fire to an oil depot in Sevastopol. Kyiv's military says undermining Russia's logistics is part of preparations for a long-expected counteroffensive.
The US and Iran have reached an outline agreement to extend their ceasefire pending the approval of President Donald Trump, according to an Axios report, after Iran targeted a US air base in Kuwait in the wake of US strikes on Iranian drone operation.
A fire tore through a dormitory at a girls' secondary school in a town in Kenya's Rift Valley overnight, killing 16 students, the government said on Thursday.
An Israeli strike hit a building in the southern suburbs of the Lebanese capital on Thursday, the first strike to hit near Beirut in weeks amid a ceasefire that has failed to halt fighting between Israeli troops and Hezbollah in south Lebanon.
Kenya has approved a request from the US to open a quarantine facility for Americans exposed to Ebola, two US officials told Reuters on Thursday, as the head of the World Health Organisation was travelling to the epicentre of the outbreak in Democratic Republic of Congo.
Kuwait's Foreign Ministry has strongly condemned the Iranian attacks targeting its territories with missiles and drones, describing it as a dangerous escalation and a blatant violation of the country's sovereignty, security and territorial integrity.