KIEV, July 3 (Reuters) - Ukrainian President Petro Poroshenko spoke to U.S. Vice President Joe Biden on the telephone on Thursday, saying he was ready to engage in a ceasefire with pro-Russian rebels if certain conditions were met, his office said.
"Poroshenko emphasized he was ready to return to a ceasefire as soon as confirmation was received that it is being fulfilled in a bilateral format as well as the release of hostages and the establishment of control over the border through OSCE monitoring," a statement on his website said.
Poroshenko called off a unilateral ceasefire early on Tuesday after numerous attacks by the separatists on Ukrainian forces. He accuses Russia of allowing fighters and weapons to enter Ukraine through their common border.
(Reporting by Natalia Zinets; Writing by Thomas Grove; Editing by Robin Pomeroy)
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