U.S. President Donald Trump said Sunday he was issuing a "last warning" to Hamas, saying the Palestinian militant group must accept a deal to release hostages in Gaza.

"The Israelis have accepted my terms. It is time for Hamas to accept as well. I have warned Hamas about the consequences of not accepting. This is my last warning," Trump said on social media, without elaborating further.

U.S. President Donald Trump threatened Sunday to impose more sanctions on Russia, after the Kremlin unleashed its biggest-ever aerial barrage at Ukraine.

Russian missiles and drones rained down across Ukraine early Sunday, killing four people and setting government offices in the capital Kyiv ablaze.

Israel's defense minister told Hamas on Monday to lay down its arms or face annihilation, after U.S. President Donald Trump said the militant group must accept a deal to release hostages in Gaza.

The warnings came as the Israeli military intensified its bombings and operations around Gaza City, which it has vowed to capture in a bid to finally defeat Hamas after nearly two years of devastating conflict.

Eight key members of the OPEC+ alliance have agreed to again boost oil production, in a strategy analysts saw as a bid to gain a bigger market share of sales of crude.

Oil ministers in the V8 grouping -- comprising Saudi Arabia, Russia, Iraq, United Arab Emirates, Kuwait, Kazakhstan, Algeria and Oman -- decided Sunday to increase daily production by 137,000 barrels a day from next month, they said in a statement.

France has called the cabinet's decision to ask the Lebanese Army to implement the disarmament plan "a new positive step."

"France calls on all Lebanese actors to support the peaceful implementation of the plan without delay," the French foreign ministry said.

A Hezbollah lawmaker vowed that the group will not abandon its weapons, a day after the Lebanese government ordered the army to begin implementing a plan to disarm it.

Amid heavy pressure from the United States and fears Israel might intensify its military operations, the government last month ordered the army to draw up a plan to disarm Hezbollah by the end of the year.

The Israeli army said two projectiles were launched Sunday from the Gaza Strip, with Palestinian militant group Islamic Jihad claiming responsibility for the rocket fire, which caused no casualties or damage.

An Israeli strike flattened a high-rise in Gaza City on Saturday -- the second in as many days -- after the military warned people to move to a "humanitarian zone" ahead of a planned offensive against the urban hub.

Russia fired its biggest-ever aerial barrage at Ukraine early Sunday, killing at least two people and setting the seat of the Ukrainian government in Kyiv ablaze, authorities said.

An AFP reporter saw the roof of Ukraine's cabinet of ministers in flames and smoke billowing over the capital.

Venezuelan leader Nicolas Maduro on Friday called for dialogue with Washington, hours after President Donald Trump threatened to shoot down Venezuelan military jets if they pose a danger to U.S. forces.