A South Korean man killed his son and was later found dead, local police said Thursday.

According to Ulju Police Station in Ulsan, the man in his 40s gravely injured his 20-something son with a weapon at 4:32 p.m. on Wednesday on the streets and quickly fled the scene.

The victim received medical treatment at a nearby hospital, but died less than an hour later at 5:21 p.m. that day.

Police tracked down the culprit and found him dead inside a car parked about 5 kilometers from the crime scene.

Investigators did not find a note, but they suspect the man took his own life. They are conducting a further investigation to determine exactly what transpired between the father and son.