KYIV - The death toll from Russia's missile and drone attack on Kyiv on Tuesday has risen to 23, with 134 others injured, the State Emergency Service of Ukraine said on Wednesday.

At least 18 people were killed in the city's western Solomianskyi district, where a missile struck a nine-story residential building, partially destroying the structure.

ALSO READ: At least 15 killed, 75 injured in major Russian attack on Ukraine

Search and rescue operations continued at the site into Wednesday, the emergency service said in a statement.

READ MORE: Russia transfers bodies of over 6,000 soldiers to Ukraine

The United Nations Human Rights Monitoring Mission in Ukraine described the strike as "likely the deadliest" attack on the Ukrainian capital in nearly a year.

Kyiv Mayor Vitali Klitschko declared June 18 a Day of Mourning in the city.