Ukrainian deputy Health Minister Raisa Moiseyenko has said that jailed former Prime Minister Yulia Tymoshenko would stay for at least one more month in a clinic for treatment.
Moiseyenko's statement on September 18 comes one day after a German doctor, Lutz Harms, examined Tymoshenko at the hospital in Kharkiv where she has been undergoing treatement since May due to her complaints over back pains.
Tymoshenko is serving a seven-year jail term on charges of abuse of office.
She denies any wrongdoing.
The European Union and the United States have condemned Tymoshenko's imprisonment as politically motivated.
Last week, female convict Oksana Melnyk, who shared a clinic room with Tymoshenko for several weeks, told journalists that the former prime minister was in fact "healthy and simulated her illness for political PR."
Based on reporting by UNIAN and Interfax