As reported by Censor.NET, this was announced by Interior Minister Adviser Zorian Shkiriak on his Facebook page.
"One of them has been put under a 24-hour house arrest. Another suspect is currently in a hospital due to health problems. The decision on him will be made as soon as he is able to present at a court hearing. All required investigation on finding out the circumstances of the crime shall continue in the future," Shkiriak said.
Related materials: Explosion near Verkhovna Rada