NATO chief Jens Stoltenberg has reiterated his support for Ukraine in a meeting with the Ukrainian foreign minister. He responded to Russian attacks on several Ukrainian cities Monday morning.

“NATO will continue to support the brave Ukrainian people to fight back against the Kremlin’s aggression for as long as it takes,” Stoltenberg wrote on Twitter.

He condemned the “appalling and indiscriminate attacks on civilian infrastructures in Ukraine”.

Defense ministers of NATO countries will meet in Brussels on Wednesday for a two-day meeting, which also includes support for Ukraine.