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The governor of the Belgorod region of southern Russia said on Tuesday that two people had been killed and three wounded by shelling in a town near the border with Ukraine, Reuters reported.
Governor Vyacheslav Gladkov gave no further details of the incident in the town of Shebekino.
Belgorod is one of several southern Russian regions where targets such as fuel and ammunition stores have been rocked by explosions since the start of the war in what Moscow said were Ukrainian attacks. Kyiv, without claiming responsibility, has described them as "karma" for Russia's invasion.
Last month Gladkov said more than 2,000 people had been left without power after what he said was Ukrainian shelling of an electricity substation in Shebekino.
European Union countries should work together in replenishing their military inventories and avoid competing with each other amid ongoing arms deliveries to Ukraine, EU foreign policy chief Josep Borrell said on Tuesday, according to Reuters.
The EU has long urged member states to join forces on arms purchases instead of driving up prices by competing against each other or striking deals individually with suppliers outside the bloc. But countries have been reluctant to heed the advice.
The 27 member states are set to boost military budgets by up to $72.2 billion in total by 2025, but a lack of project cooperation and the purchases outside the bloc risk undermining efforts to create coherent forces, the European Defense Agency (EDA) said in its annual review for ministers.
Only 18% of all investment in defense programs involves cooperation between member states, the EDA stated, adding that investing in European projects was often seen as more time-consuming and complex.
Global leaders gathered for the G-20 meeting in Bali, Indonesia, were holding an emergency meeting on Wednesday after deadly explosions in Poland that Ukraine and Polish authorities said were caused by Russian-made missiles, Reuters reported.
The meeting was convened by U.S. President Joe Biden. Leaders Germany, Canada, Netherlands, Japan, Spain, Italy, France and the United Kingdom also attended.
All except for Japan are members of NATO, the defense alliance that also includes Poland.
A determination that Moscow was to blame for the blast could trigger NATO's Article 5, in which an attack on one of the Western alliance's members is deemed an attack on all, starting deliberations on a potential military response.
The leaders were briefly seen together around a conference table at the start of the meeting. Officials said it was not clear how long the meeting would last.
Several protesters disrupted a Russian-hosted event at the COP27 climate conference in Egypt on Tuesday, criticizing delegates over the war in Ukraine and Russia's use of fossil fuels before being escorted out by security staff, Reuters reported.
About five protesters stood and shouted as Russian officials took part in a panel discussion about the country's climate plans.
"You are war criminals," one shouted. Another held a banner reading "fossil fuels kill," calling the Russian delegates "despicable."
Earlier Russia's climate envoy said the country was still actively trying to prevent climate change, and said it was worried that some countries may be using a "difficult geopolitical situation" to justify backsliding on climate commitments.
British Prime Minister Rishi Sunak called Tuesday for efforts to stabilize oil markets in talks with Saudi Arabia's crown prince, who was shunned by US President Joe Biden over an output cut, Agence France-Presse reported.
The new British prime minister met separately with Crown Prince Mohammed bin Salman, the oil-rich kingdom's effective ruler, as they gathered for the Group of 20 summit on the Indonesian resort island of Bali.
"In light of the global increase in energy prices sparked by Russia's invasion of Ukraine, the prime minister said he hoped the UK and Saudi Arabia could continue to work together to stabilize energy markets," a Downing Street spokesperson said.
The engagement contrasts with the cold shoulder by Biden, with U.S. officials saying they were not planning any meeting with the prince, known by his initials MBS, even on a lower level.
Moldova said it was suffering from electricity outages on Tuesday as a result of Russian strikes on energy infrastructure in neighboring Ukraine and called on Moscow to stop its attacks, Agence France-Presse reported.