Joanna Kakisis

For hours, all we could hear in Kiev was the sound of constant explosions and the low growl of attack drones flying overhead.

Many blasts came from Ukrainian air defense trying to shoot down 90 missiles and 600 attack drones launched by Russia.

Writing on social media, Ukrainian President Volodymyr Zelensky said Russia hit a city near Kyiv with a hypersonic or rechnik ballistic missile, which can carry nuclear warheads.

It's the third time Russia has used this missile during its full-scale war on Ukraine.

Joanna Kekisis, NPR News, Kyiv.

Writing on social media, Ukrainian President Volodymyr Zelensky said his proposed truce would start on midnight May 6, a couple of days before the one offered by the Kremlin.

Speaking in the Armenian capital Yerevan on Monday, Zelensky said Russian leaders are not including military equipment in the upcoming Victory Day parade in Moscow.

Previous attempts at temporary ceasefires have failed, with Russia and Ukraine accusing each other of violations.

Joanna Kakissis, NPR News.

Ukrainian authorities said the gunman set fire to his apartment in Kyiv, then grabbed his hunting rifle and shot at people on the street.

He had taken hostages in a nearby supermarket when special police forces shot him dead.

Police identified him as a 58-year-old native of Moscow.

They did not release his name.

In a video address, Ukrainian President Volodymyr Zelensky said investigators are trying to establish a motive.

We need to check every detail.

He said they are checking every detail, going through his electronic devices and all other connections.

Ukraine's prosecutor general said the shooting is being probed as a terrorist act.

Joanna Kakisis, NPR News, Kyiv.

In a post on social media, Zelensky says Trump's son-in-law, Jared Kushner, and special envoy Steve Witkoff were also on the call.

Zelensky says he thanked them for their efforts and that they talked about how to handle sticking points in negotiations.