Home rental company Airbnb Inc said on Monday its non-profit arm would offer free, temporary housing for up to 100,000 refugees fleeing Ukraine.
Chief Executive Brian Officer Brian Chesky and Joe Gebbia, the chairman of Airbnb.org, have sent letters to leaders of Poland, Romania, Germany and Hungary offering help to house the refugees.
The countries share borders with Ukraine.
At least 300,000 Ukrainian refugees have entered the European Union so far after Russia's invasion of the country, and the bloc needs to prepare for millions more, senior EU and French officials have said.
Airbnb.org, which provides temporary stays for people during crisis, will work closely with governments to help address needs in each country including by providing longer-term stays.
The stays will be funded by Airbnb, donors to the Airbnb.org Refugee Fund and hosts of Airbnb.org.
President Donald Trump said the US was considering "winding down" its military operation against Iran, as Iran and Israel traded attacks on Saturday and Iranian media said the nuclear enrichment facility in Natanz had been attacked.
Robert Mueller, the no-nonsense former FBI chief who documented Russia's interference in the 2016 US election and its contacts with Donald Trump's campaign but opted not to bring criminal charges against a sitting president, has died at age 81.
Fourteen people died and 25 were seriously injured in a fire at a car parts factory in the South Korean city of Daejeon, fire authorities said on Saturday.
Russian attacks on Ukraine killed two people in Zaporizhzhia and left most of the northern region of Chernihiv without power on Saturday, Ukrainian officials said.