KYIV, Ukraine (AP) — The International Committee of the Red Cross asked for access to a prison where dozens of Ukrainian prisoners of war were killed in a rocket attack. But the agency said Saturday that its request has not been granted so far. Russian and Ukrainian officials have blamed each other for the deaths of the POWs on Friday in a separatist-controlled area in eastern Ukraine. Both sides alleged the attack was intended to cover up atrocities. Ukrainian President Volodymyr Zelenskyy called it mass murder. Russia on Saturday released the names of 48 Ukrainian POWs who died in the attack. Relatives of Ukrainian POWs held a protest in Kyiv and called for Russia to be declared a terrorist state.