The International Committee of the Red Cross plans a fresh attempt at evacuating thousands of civilians from the besieged Ukrainian port city of Mariupol after Friday’s attempt failed, despite a Russian announcement. “Today, our team tried to facilitate a safe passage out of #Mariupol.But had to return to Zaporizhzhia after conditions made it impossible to proceed,” the organization tweeted. “We will try again tomorrow. It’s critical the parties respect agreements and provide the necessary security guarantees.” Later, Russian and Ukrainian sources said some 3,000 people had managed to flee the…