“I am deeply shocked by the images of civilians killed in Bucha, Ukraine,” said UN chief, Mr. Guterres in a briefly worded statement, which was also posted on his official Twitter account.

“It is essential that an independent investigation leads to effective accountability.” Guterres said.

Osnat Lubrani, UN Humanitarian Coordinator for Ukraine, tweeted. "Ukrainians are enduring a living hell for more than a month, thousands of civilians have died," she said.  "This horrific war needs to stop."