Ukrainian ex-premier Yulia Timoshenko said she would run for presidency, ITAR-TASS reported.
The presidential elections in Ukraine are scheduled for May 25.
"I'm going to Maidan (Independence Square)," she said.
The ex-premier has been carried out from the clinic on a wheelchair, but she is in cheerful mood.
The ex-premier, who has been freed, has left for Kiev by special flight.