Russian foreign minister Sergey Lavrov is scheduled to meet with Ukraine foreign minister Dmytro Kuleba in Antalya, Turkey, on Thursday, ahead of the start of the Antalya Diplomacy Forum.

This will be the first face-to-face high-level meetings between Russian and Ukrainian officials since the Russian invasion began.

This meeting is a continuation of the negotiating process "and a very important one," Kremlin spokesperson Dmitry Peskov said, according to Russian state-run news agency TASS.

Lavrov is expected to make a speech on Moscow's position on current issues in Antalya, and Turkish Foreign Minister Mevlut Cavusoglu is also scheduled to attend the meeting with Kuleba.

The third round of talks between Russian-Ukrainian delegates was held in Belarus on Monday.

-ABC News' Christine Theodorou

The head of the United Nations Children's Fund (UNICEF) strongly condemned a missile attack apparently launched by Russia Wednesday on a maternity hospital in Ukraine.

"I am horrified by the reported attack today on a maternity hospital in Mariupol, Ukraine -- an attack which reportedly left young children and women in labor buried beneath the rubble of destroyed buildings," UNICEF executive director Catherine Russell said in a statement. "We do not yet know the number of casualties but fear the worst."

A devastating airstrike destroyed a maternity and children’s hospital in the besieged southeastern Ukrainian city, causing multiple casualties. Ukraine’s president Volodymyr Zelenskyy and local officials posted videos on social media of the destroyed hospital.

Zelenskyy called the attack an "atrocity."

Russell said that if confirmed, the attack "underscores the horrific toll this war is exacting on Ukraine’s children and families."

"In less than two weeks, at least 37 children have been killed and 50 injured, while more than 1 million children have fled Ukraine to neighboring countries," Russell said.

Russell added, "Attacks against civilians and civilian infrastructure --including hospitals, water and sanitation systems and schools -- are unconscionable and must stop immediately. UNICEF renews its call for an immediate cease-fire and urges all parties to respect their obligations under international humanitarian law to protect children from harm, and to ensure that humanitarian actors can safely and quickly reach children in need. The children of Ukraine desperately need peace."

Russia has confirmed the use of thermobaric rockets, or vacuum bombs, the U.K. Ministry of Defense tweeted Wednesday.

The weapon uses a fuel container and two separate explosive charges to ignite a blast of extreme pressure and heat, creating a partial vacuum in an enclosed space.

The impact from the bomb is "devastating," according to the ministry.

-ABC News' Guy Davies

Papa John's and Heineken are the latest brands to cease business in Russia in response to the invasion of Ukraine.

The American pizza chain and the Dutch beer company join internationally known brands such as McDonald's, The Coca-Cola Company, PepsiCo and Starbucks in suspending operations in Russia.

While Heineken has stopped the production and sale of beer in Russia, Papa John’s has suspended all corporate operations there as well.

"It has ceased all operational, marketing and business support to, and engagement with, the Russian market, where all restaurants are owned by independent franchisees, and a master franchisee who controls operations and provides all supplies and ingredients for the restaurants through a supply chain that it owns and operates," a statement released Wednesday by Papa John’s read.

-ABC News' Victor Ordonez

Ukraine's air force claimed Friday that Russia carried out an alleged false flag airstrike in a Belarusian village near the border with Ukraine.

In a post on Facebook, Ukraine's air force claimed Russian jets took off from a base in Belarus and entered Ukraine's airspace, then a fire started in the village of Kopani.

Ukraine's Defense Minister Oleksy Reznikov earlier claimed in a Facebook post that Russian forces would launch a strike against Kopani to "pull the armed forces of the Republic of Belarus into the war with Ukraine."

-ABC News' Patrick Reevell