A White House official said Biden's comments did not reflect a policy shift, even though the U.S. traditionally has avoided making such an explicit security guarantee to Taiwan.
Medyka is the busiest border crossing between Poland and Ukraine. Aid workers flocked there to set up tents offering assistance when the war started. But these days, the flow of refugees has shifted.
Vadim Shishimarin, 21, had pleaded guilty last week to shooting an unarmed Ukrainian man in late February. On Monday, a panel of judges in Kyiv sentenced him to life in prison.
The isolated East Asian country has only stated how many people have fevers daily, and has only identified a few of the cases as COVID-19 since admitting to an outbreak of the omicron variant.