Sánchez wrote about this on Twitter, Ukrinform reports.
“Shocked to witness the horror and atrocities of Putin's war on the streets of Borodianka. We will not leave the Ukrainian people alone,” he wrote.
Sanchez also posted a video showing him and Frederiksen visiting Borodianka. They are accompanied by Deputy Prime Minister for European and Euro-Atlantic Integration Olha Stefanishyna.
As reported, Prime Minister of Spain Pedro Sanchez said the day before that the Spanish embassy "will return to work in Kyiv in the coming days."
Earlier this month, the Spanish Foreign Ministry expelled 25 Russian diplomats and embassy staff over Russia's invasion of Ukraine.