กลาโหมรัสเซียยืนยัน! – A view shows a damaged apartment block at the accident scene following a large blast in a street in the city of Belgorod, Russia, April 20, 2023. Mayor of Belgorod City Valentin Demidov via Telegram/Handout via REUTERS ATTENTION EDITORS – THIS IMAGE WAS PROVIDED BY A THIRD PARTY. NO RESALES. NO ARCHIVES. MANDATORY CREDIT.

กลาโหมรัสเซียยืนยัน! – A large explosion hit Belgorod late Thursday, and the Defense Ministry said one of its Su-34 warplanes accidentally discharged ammunition over the city about 25 kilometers (15 miles) from the Ukrainian border. Belgorod regional Gov. Vyacheslav Gladkov said the blast injured at least two people, damaged homes and left a crater about 20 meters (65 feet) across. (Telegram Channel of Belgorod Region Governor Vyacheslav Gladkov via AP)

กลาโหมรัสเซียยืนยัน! – This handout picture posted on April 20, 2023 on the official Telegram account of Vyacheslav Gladkov, governor of the Belgorod region, shows damage after an explosion in the city. AFP PHOTO

The Belgorod region, including the city of the same name, has been repeatedly hit by shelling since President Vladimir Putin sent troops to Ukraine in February, 2022. AFP PHOTO