Ukrainian, Russian and Western diplomats held emergency talks in Switzerland on April 17, in the hope of resolving a deepening crisis that has seen armed pro-Russian protesters seize swaths of Ukraine. The unrest in the restive east, which shares a border with Russia, is spiraling so fast, it has left diplomacy writhing in the dust.
CNN: Base attack, referendum plans overshadow Russia, Ukraine talks
Pro-Russian protesters hold a rally outside the mayor's office in Mariupol, which was seized by by Kremlin-backed militants on April 13, 2014.
