The leaders of the U.K., Ukraine, France and Germany discussed the “urgent need” to ramp up production of weapons to combat Russia’s powerful hypersonic Oreshnik ballistic missiles in a meeting in London on Sunday.

Residents of St. Petersburg have been told to stay indoors after a large-scale Ukrainian drone attack targeted the city.

A historic theater in the Russian-occupied Ukrainian city of Mariupol has opened its doors more than three years after it was pummeled in a Russian airstrike that killed hundreds of civilians sheltering inside.