. >> that was frank kaufman reported from stereo vote.ro-russian rebels in eastern ukraine have just released a second group of european observers who had been held captive for weeks. it is the second group of observers the rebels released this week. ukrainian president pedro poroshenko extended the cease-fire another three days with hopes for progress in a peace plan. president petro poroshenko paid tribute to a national hero, who drew up the country's 1st constitution and 18th century. some consider him the founding father of today's independent ukraine. an independence that the authorities in tf fear is under threat because of separatists in the eastern part of the country. kiev has given the rebels until monday to lay down their arms. the former president is part of the group of mediators. >> there is no point in negotiating with them today. we will wait until monday. then at least the european union and the united states will realize who is who. they cannot leave ukraine alone to deal with the separatists. cease-fire has already been