NEW : Separatist leader says rebels will not agree to disarm in return for amnesty . Accord between Ukrainian , European parliaments will bring closer political , economic ties . Ukraine 's lawmakers also approve `` special status '' law for rebel-held areas in the east . The EU and United States have imposed economic sanctions against Russian interests over Moscow 's intervention in Ukraine . *
NEW : Separatist leader says rebels will not agree to disarm in return for amnesty . Accord between Ukrainian , European parliaments will bring closer political , economic ties . Ukraine 's lawmakers also approve `` special status '' law for rebel-held areas in the east . *