The buildup over the last few years has threatened the delicate balance of peace on the Korean Peninsula.

The men of Lidice, including her father, were massacred and the women, including her mother, sent to a concentration camp. She later testified at the Nuremberg war-crimes trials.

A passenger train derailed north of Cairo on Sunday, the Egyptian authorities said. It was the latest of several deadly train accidents in Egypt in recent years.

Throughout the pandemic, the pope has often delivered the weekly address, prayer and blessing from the apostolic library, with no public in attendance.

Francis gave his Sunday blessing to the faithful in the square for the first time in a month. Throughout the pandemic, he has often spoken from the apostolic library without the public in attendance.

Dr. Anthony Fauci said that he expected experts meeting at the end of the week to recommend “some sort of either warning or restriction.”

Alaska is the 22d state to announce plans to vaccinate nonresidents against the coronavirus.

Health officials say rising case counts are fueled in part by more contagious coronavirus variants, particularly B.1.1.7, the variant first found in Britain.

As of April 24, entry into the country will be restricted, and those who qualify will be subject to a 10-day quarantine.