The Ukrainian public prosecutor’s office has opened an investigation into a new suspected case of prisoners of war who were shot dead, allegedly by Russian soldiers. A recording clearly showed “that the defenders of Ukraine laid down their weapons and offered no resistance,” the authorities wrote in a message on Telegram. Wednesday’s remarks came after a video of an alleged shooting of two unarmed Ukrainian soldiers in a trench by Russian soldiers had been circulated on social networks. According to the public prosecutor’s office, the incident allegedly took place in June in the Zaporizhzhya r…