TOKYO (AP) — Japanese authorities say at least 38 people have been injured, some critically, after a man started a fire at a famous animation production studio in Kyoto.

Kyoto prefectural police say the fire broke out Thursday morning at a three-story building of Kyoto Animation after a man burst in and spread unidentified liquid that set off the blaze.

Fire department officials say 10 of the injured are in serious condition.

Rescue officials set up a tent outside the building to provide first aid and sort out the injured. Fire department officials say more than 70 people were in the building at the time of the fire, but most of them ran outside.