Russian forces hit a residential neighborhood Sunday in the Orikhiv, Zaporizhzhia region by a guided aerial bomb during the distribution of humanitarian aid, Ukrainian officials said.

At least seven people were killed and 11 others were injured in the blast, according to the regional military administration.

-ABC News' Will Gretsky

Russian forces are suffering an average of 400 casualties daily, according to a report from the U.K.'s Ministry of Defence.

The report said that Russia is struggling with "a crisis of combat medical provision."

"It is likely that many dedicated military hospitals are being reserved for officer casualties," the report said.

The Ministry of Defence added that half of Russian fatalities in the last 17 months could have been prevented with proper first aid.

-ABC News' Will Gretsky

Ukraine Deputy Minister of Defense Hanna Malyar released a statement Monday with updates on the ongoing counteroffensive.

Malyar said that Ukrainian forces liberated more than 14 square kilometers of territory from Russian forces last week, the majority of which came from the south.

The minister added that Russian forces are "on the defensive" in the direction of Bakhmut.

"The defense forces of Ukraine were able to capture the main heights near Bakhmut and have been holding the fortress city under fire control for several days," Malyar said.

-ABC News' Will Gretsky

Russian President Vladimir Putin met with Wagner Group leader Yevgeny Prigozhin days after the rogue paramilitary leader launched a failed uprising, the Kremlin said on Monday.

The June 29 meeting came about a week after the rebellion failed, Kremlin spokesman Dmitry Peskov said.

"Indeed, the president had such a meeting, he invited 35 people to it -- all the commanders of the detachments and the management of the company, including Prigozhin himself," Peskov said Monday, according to Interfax, a Russian newswire. "This meeting took place in the Kremlin on June 29, it lasted almost three hours."

-ABC News' Anastasia Bagaeva and Joe Simonetti

The Ukrainian military has landed troops on the Russian-held eastern bank of the Dnipro River across from the city of Kherson, according to Russian reports.

Media posted online by pro-Russian accounts suggested small boatloads of Ukrainian soldiers have managed to establish a small beachhead at the foot of the destroyed Antonivskiy Road Bridge that spanned the river before Ukraine brought it down last year.

The size of the Ukrainian force on the bank is unclear, but Russian accounts suggested it was relatively small.

Some Russian accounts posted dramatic video showing fighting on the eastern bank, including what appears to be a Russian armored vehicle firing intensively at Ukrainian soldiers as it recovers Russian wounded.

The video was undated but Russian reports suggested around several dozen Ukrainian troops landed on June 24 and Russian airborne units have been trying to dislodge them since.

Another video shows a small boat carrying perhaps a dozen Ukrainian soldiers landing by the ruined bridge, coming under shell fire.

The Russian military blogger account, Two Majors, reported a small group of Ukrainian soldiers had succeeded in digging in around the bridge. It noted Russian forces had been forced to pull back to a distance from the bank because their positions had been flooded after the Kakhovka dam was blown up earlier this month.

Russian military bloggers said Russian aircraft and artillery were firing on the Ukrainians Monday.

If Ukraine is able to keep hold of its foothold, it will put further pressure on Russia’s forces in the south, already battling to hold back Ukraine’s counteroffensive on the Zaporizhzhia front.

-ABC News' Patrick Reevell