Vasyl Tsushko was hospitalized in Ukraine on May 26, but on May 31 he was transferred to a hospital in Germany as his health deteriorated.
Back in Ukraine Tsushko faces prosecution after he ordered riot police into the Prosecutor General's office building during an ongoing political crisis in the country.
On May 24 Western-leaning President Viktor Yushchenko dismissed his long-time opponent Prosecutor General Svyatoslav Piskun and appointed Viktor Shemchuk, but the interior minister defied the president's order, sending in riot police to defend Piskun, who remained in his office.
President Yushchenko said later that Tsushko must be called to account for his actions and the ensuing chaos.
"This was an act for which the interior minister should be personally called to account," Yushchenko said.
