Foreign Minister Murray McCully has condemned the killing of up to 30 civilians in Eastern Ukraine over the weekend and called on Russia to intervene.
"These latest civilian casualties are completely unacceptable. In particular, reports of indiscriminate shelling of residential areas in the city of Mariupol are deeply concerning," Mr McCully said.
"New Zealand considers such actions to be reprehensible, and calls on all parties in Ukraine to respect international humanitarian law."
Mr McCully said he was particularly concerned that the conflict in Ukraine continued in the face of the Minsk agreements signed in September last year.
"We call on all parties to implement fully their commitments under these agreements, including an immediate cessation of hostilities.