People dressed in white protective suits hold candles during a memorial service dedicated to firefighters and workers who died after the 1986 Chornobyl (Chernobyl) nuclear disaster, ahead of its 40th anniversary in Slavutych, Ukraine, Saturday, April 25, 2026. Chornobyl is the Ukrainian name for the city. (AP Photo/Dan Bashakov)

A man lights a candle at a memorial dedicated to firefighters and workers who died after the 1986 Chornobyl (Chernobyl) nuclear disaster, ahead of its 40th anniversary in Slavutych, Ukraine, Saturday, April 25, 2026. Chornobyl is the Ukrainian name for the city. (AP Photo/Dan Bashakov)

Red flowers lie on a bas-relief of firefighter Georgy Popov atop of his grave at the Mitinskoye Cemetery where several victims of the Chernobyl nuclear disaster are buried, marking the 40th anniversary of the explosion and fire at the Chernobyl nuclear power plant in Ukraine, outside Moscow, Sunday, April 26, 2026. (AP Photo/Alexander Zemlianichenko)

Russian Emergency Ministry troops and veterans lay flowers at the graves of firefighters at the Mitinskoye Cemetery where several victims of the Chernobyl nuclear disaster are buried, marking the 40th anniversary of the explosion and fire at the Chernobyl nuclear power plant in Ukraine, outside Moscow, Sunday, April 26, 2026. (AP Photo/Alexander Zemlianichenko)

A man looks at a memorial dedicated to firefighters and workers who died after the 1986 Chornobyl (Chernobyl) nuclear disaster, ahead of its 40th anniversary in Slavutych, Ukraine, Saturday, April 25, 2026. Chornobyl is the Ukrainian name for the city. (AP Photo/Dan Bashakov)

Iraqi Muslim women hold portraits of Iran's late Supreme Leader Ayatollah Ali Khamenei and his son Ayatollah Mojtaba Khamenei, during a protest against U.S. and Israeli attacks on multiple cities across Iran, in Baghdad, Iraq, Saturday, April 25, 2026. (AP Photo/Hadi Mizban)

In this photo released by the Iranian Foreign Ministry, Iranian Foreign Minister Abbas Araghchi, left, meets with Oman's Sultan Haitham bin Tariq, in Muscat, Oman, Sunday, April 26, 2026. (Iranian Foreign Ministry via AP)

Matt Fitzpatrick, left, of England, lines up a putt with his brother Alex Fitzpatrick, right, at the ninth hole during the final round of the PGA Zurich Classic of New Orleans golf tournament, Sunday, April 26, 2026, in Avondale, La. (AP Photo/Matthew Hinton)