Russian forces strafed Ukraine with a fresh barrage of missiles and munition-carrying drones Tuesday, a day after widespread strikes killed at least 19 people in what the U.N. human rights office described as a “particularly shocking” attack that could amount to war crimes.

Air raid warnings extended throughout the country in the morning, sending some residents back into shelters after months of relative calm in Kyiv and many other cities. The earlier lull had led many Ukrainians to ignore the regular sirens, but Monday’s attacks in the capital and 12 other regions gave them new urgency.

“It brings anger, not fear,” Kyiv resident Volodymyr Vasylenko, 67, said as crews worked to restore traffic lights and clear debris from the city’s streets. “We already got used to this. And we will keep fighting.”

Ukrainian President Volodymyr Zelenskyy was due to address the leaders of the Group of Seven industrial powers by videoconference Tuesday. Germany, which currently chairs the G-7, announced the meeting after Monday’s simultaneous strikes across Ukraine.

The bombardment Tuesday struck both power plants and civilian areas, just as Monday’s attacks did. One person was killed when 12 missiles slammed into public facilities in the southern city of Zaporizhzhia, setting off a large fire, the State Emergency Service said. A local official said the missiles hit a school, residential buildings and medical facilities.

The Supreme Court has rejected an appeal from Dylann Roof, who challenged his death sentence and conviction in the 2015 racist slayings of nine members of a Black South Carolina congregation.

Roof had asked the court to decide how to handle disputes over mental illness-related evidence between capital defendants and their attorneys. The justices did not comment Tuesday in turning away the appeal.

Roof fired his attorneys and represented himself during the sentencing phase of his capital trial, part of his effort to block evidence potentially portraying him as mentally ill.

Roof shot participants at a Bible study session at Mother Emanuel AME Church in Charleston, South Carolina.

A panel of appellate judges had previously upheld his conviction and death sentence.

Roof, 28, is on federal death row at a maximum-security prison in Terre Haute, Indiana. He can still pursue other appeals.

The Division of Student Affairs and Undergraduate Student Government dedicated the Student Memorial Sculpture to deceased St. Thomas students Sunday outside the Chapel of St. Thomas Aquinas.

Isabelle Lynch can be reached at isabelle.lynch@stthomas.edu.