Authorities transferred former Egyptian president Hosni Mubarak to a military hospital after his medical condition worsened Thursday.

State-run news agency MENA reported that Mubarak’s condition would be monitored at the army hospital before he could be moved back to the prison clinic where is serving a life sentence. It’s not clear what his ailments are.

Egypt’s state prosecutor ordered the transfer Thursday, based on recommendations in a medical report.

Mubarak, 84, suffered a head injury and a bruised chest when he slipped in a prison hospital bathroom earlier this month. In 2011, he attended his trial on a gurney and was reported to be in a coma last June in the weeks following his imprisonment.

Mubarak was convicted of failing to stop the killings of protesters during the uprising in Egypt. There have been conflicting reports about his state of health.