Man arrested after going on a rampage at hospital
The suspect, who also carried a stun gun, entered the facility in Daejeon, about 164 kilometers (102 miles) south of Seoul, around 1:40 p.m.
He fired his air rifle but no one was shot. He then, stabbed hospital employees with the knife and injured them with the stun gun, officers said.
The victims were not in critical condition and there are no casualties.
No mothers and babies were harmed.
The suspect fled the scene but turned himself in after about one hour, officers said.
Police said the suspect told them that he was enraged because he had lost a trademark litigation against the hospital that operated the facility. The suspect also said the hospital refused to offer him a job.