Russia will definitely respond to Ukraine's latest use of US-made ATACMS missiles to strike Russian territory, the Kremlin said on Thursday.
Russia said on Wednesday that Ukraine had struck a military airfield on the Azov Sea with six US-made ATACMS ballistic missiles, a move that could prompt Moscow to launch another experimental intermediate-range hypersonic missile at Ukraine.
Russia's defence ministry said on Wednesday that the "attack by Western long-range weapons will not go unanswered and appropriate measures will be taken". It is unclear exactly how Russia will respond.
"I would like to recall the absolutely unambiguous and direct statement of the defence ministry of the Russian Federation made yesterday, where it was clearly stated that a response would follow," Kremlin spokesman Dmitry Peskov said.
"The response will follow in a manner deemed appropriate. But it will definitely follow.".
Russia fired a new intermediate-range hypersonic ballistic missile known as "Oreshnik", or Hazel Tree, at Ukraine on November 21 in what President Vladimir Putin said was a direct response to strikes on Russia by Ukrainian forces with US and British missiles.
A US official said on Wednesday that Russia could launch another hypersonic ballistic missile against Ukraine in the coming days, but Washington does not consider the Oreshnik weapon a game-changer in the war.
A Learjet has crashed on Sunday afternoon in a residential area in Palm Beach County, Florida, killing all nine people on board, US transportation officials said.
The 35-year-old UN peacekeeping mission in the Western Sahara region will come to an end after the Security Council failed to renew its mandate, the UN chief said on Sunday.
Ukraine's military said it evacuated 167 people from threatened areas of southern Kherson region on Sunday as a temporary local ceasefire expired, two days after buses carried residents out of the Russian-held town of Oleshky.
Israeli strikes have killed at least eight Palestinians, including five police officers, in the Gaza Strip in two separate attacks on Sunday, according to medics and the interior ministry.
The four members of a crew who took part in a simulated mission to Mars have emerged after 378 days in isolation at the US space agency's Johnson Space Center in Houston, an endeavor designed to help prepare for a possible future excursion by NASA astronauts to Earth's planetary neighbor.