Viktor Yanukovych is expected to give his first news conference since he was ousted as Ukraine's president.
Russian news agencies report that Yanukovych will speak on February 28 at 1300 GMT/UTC in the southern Russian city of Rostov-on-Don.
In a statement, Yanukovych said he had asked Russia to protect his personal safety from "extremists." Yanukovych also said the recent decisions made by Ukraine's parliament are illegal.
In the past week, parliament has overthrown Yanukovych's authority and appointed a new interim president. Ukraine's new authorities have also issued an arrest warrant for Yanukovych.
Arseniy Yatsenyuk, one of the leaders of the anti-Yanukovych movement, was confirmed on February 27 as prime minister of a new government led by the former opposition.