Police have begun searching the home of the suspect of a fatal arson attack at a Kyoto Animation studio in Kyoto City last week.
Investigators entered the apartment of 41-year-old Shinji Aoba in Saitama City just outside Tokyo on Friday morning.
Police have obtained an arrest warrant for Aoba on suspicion of arson and murder. Thirty-four people died and 34 others were injured in the attack.
The suspect is in critical condition with severe burns and is in the hospital's intensive care unit.
Police have so far found no links between Aoba and the animation company. They plan to wait for Aoba's recovery to question him.