Kiev and pro-Russian rebels are supposed to pull back their forces and weaponry to create a 30-kilometre wide buffer zone.
Vladimir Putin wants another frozen conflict in eastern Ukraine, says Yatseniuk.
Ukraine’s security service said that 10 Russian paratroopers were captured near the Ukrainian village of Dzerkalne.
Donetsk People’s Republic’s Dy Premier Andrei Purgin urged Kiev to “immediately conclude such an agreement” with the rebels.
Speaking after 14 servicemen were killed by rebels the minister said: “Our given task is to bring peace and order to the region.”
Ukraine’s Interior Ministry says 4 officers have been killed and 30 wounded in gunbattles with pro-Russia militants.
The Kremlin and Ukraine traded accusations over the violence, with Kiev saying the Odessa violence had been “coordinated by sabotage groups from Russia”.
President says that operation is underway in eastern Donetsk region, Rebels continue occupation in quiet Slaviansk
The measure also includes reforms to the International Monetary Fund that are opposed by many congressional Republicans.
As the votes were counted, a crowd gathered in the center of Simferopol to celebrate with song and dance.
The choice is between joining Russia or taking more powers but staying in Ukraine. Status quo not an option.
Prime Minister Arseniy Yatsenyuk vowed Ukraine would not cede “an inch” of its territory to Moscow.
Liz Wahl accused Russia Today of whitewashing moves by Vladimir Putin.
Kremlin reportedly orders Ukrainian forces in Crimea to surrender or face attack.
The leaders stressed that the dialogue between Ukraine and Russia should start immediately.