The Ukrainian State Police conducts bombs and mines disposal in the suburb of Kyiv, Ukraine on June 1, 2022. Russia one occupied towns around Kyiv and many unexploded ordnances and mines are still left. Especially it takes time to find those in rivers and lakes. ( The Yomiuri Shimbun via AP Images )

The Ukrainian State Police conducts bombs and mines disposal in the suburb of Kyiv, Ukraine on June 1, 2022. Russia one occupied towns around Kyiv and many unexploded ordnances and mines are still left. Especially it takes time to find those in rivers and lakes. ( The Yomiuri Shimbun via AP Images )

The Ukrainian State Police conducts bombs and mines disposal in the suburb of Kyiv, Ukraine on June 1, 2022. Russia one occupied towns around Kyiv and many unexploded ordnances and mines are still left. Especially it takes time to find those in rivers and lakes. ( The Yomiuri Shimbun via AP Images )

The Ukrainian State Police conducts bombs and mines disposal in the suburb of Kyiv, Ukraine on June 1, 2022. Russia one occupied towns around Kyiv and many unexploded ordnances and mines are still left. Especially it takes time to find those in rivers and lakes. ( The Yomiuri Shimbun via AP Images )

The Ukrainian State Police conducts bombs and mines disposal in the suburb of Kyiv, Ukraine on June 1, 2022. Russia one occupied towns around Kyiv and many unexploded ordnances and mines are still left. Especially it takes time to find those in rivers and lakes. ( The Yomiuri Shimbun via AP Images )

The Ukrainian State Police conducts bombs and mines disposal in the suburb of Kyiv, Ukraine on June 1, 2022. Russia one occupied towns around Kyiv and many unexploded ordnances and mines are still left. Especially it takes time to find those in rivers and lakes. ( The Yomiuri Shimbun via AP Images )

The Ukrainian State Police conducts bombs and mines disposal in the suburb of Kyiv, Ukraine on June 1, 2022. Russia one occupied towns around Kyiv and many unexploded ordnances and mines are still left. Especially it takes time to find those in rivers and lakes. ( The Yomiuri Shimbun via AP Images )

The Ukrainian State Police conducts bombs and mines disposal in the suburb of Kyiv, Ukraine on June 1, 2022. Russia one occupied towns around Kyiv and many unexploded ordnances and mines are still left. Especially it takes time to find those in rivers and lakes. ( The Yomiuri Shimbun via AP Images )

The Ukrainian State Police conducts bombs and mines disposal in the suburb of Kyiv, Ukraine on June 1, 2022. Russia one occupied towns around Kyiv and many unexploded ordnances and mines are still left. Especially it takes time to find those in rivers and lakes. ( The Yomiuri Shimbun via AP Images )

Unexploded ordnances and mines collected by the Ukrainian State Police are seen in the suburb of Kyiv, Ukraine on June 1, 2022. Russia one occupied towns around Kyiv and many are still left. Especially it takes time to find those in rivers and lakes. ( The Yomiuri Shimbun via AP Images )

Unexploded ordnances and mines collected by the Ukrainian State Police are seen in the suburb of Kyiv, Ukraine on June 1, 2022. Russia one occupied towns around Kyiv and many are still left. Especially it takes time to find those in rivers and lakes. ( The Yomiuri Shimbun via AP Images )

Unexploded ordnances and mines collected by the Ukrainian State Police are seen in the suburb of Kyiv, Ukraine on June 1, 2022. Russia one occupied towns around Kyiv and many are still left. Especially it takes time to find those in rivers and lakes. ( The Yomiuri Shimbun via AP Images )

Unexploded ordnances and mines collected by the Ukrainian State Police are seen in the suburb of Kyiv, Ukraine on June 1, 2022. Russia one occupied towns around Kyiv and many are still left. Especially it takes time to find those in rivers and lakes. ( The Yomiuri Shimbun via AP Images )

People take a photo with unexploded ordnances and mines collected by the Ukrainian State Police in the suburb of Kyiv, Ukraine on June 1, 2022. Russia one occupied towns around Kyiv and many are still left. Especially it takes time to find those in rivers and lakes. ( The Yomiuri Shimbun via AP Images )

People take a photo with unexploded ordnances and mines collected by the Ukrainian State Police in the suburb of Kyiv, Ukraine on June 1, 2022. Russia one occupied towns around Kyiv and many are still left. Especially it takes time to find those in rivers and lakes. ( The Yomiuri Shimbun via AP Images )

Unexploded ordnances and mines collected by the Ukrainian State Police are seen in the suburb of Kyiv, Ukraine on June 1, 2022. Russia one occupied towns around Kyiv and many are still left. Especially it takes time to find those in rivers and lakes. ( The Yomiuri Shimbun via AP Images )

The Ukrainian State Police conducts bombs and mines disposal in the suburb of Kyiv, Ukraine on June 1, 2022. Russia one occupied towns around Kyiv and many unexploded ordnances and mines are still left. Especially it takes time to find those in rivers and lakes. ( The Yomiuri Shimbun via AP Images )

The Ukrainian State Police conducts bombs and mines disposal in the suburb of Kyiv, Ukraine on June 1, 2022. Russia one occupied towns around Kyiv and many unexploded ordnances and mines are still left. Especially it takes time to find those in rivers and lakes. ( The Yomiuri Shimbun via AP Images )

A Police expert walks among ruins of a school in Kharkiv, partialy destroyed by a rocket on June 2, 2022 as Russian forces are solidifying their hold on the eastern Donbas region and pushing steadily towards Ukraine's de facto administrative centre in that region, Kramatorsk. (Photo by SERGEY BOBOK / AFP)