Police in the north-central province of Thanh Hoa on Friday nabbed a 25-year-old man who broke into a local elementary school and stabbed students playing in the yard with a knife on the morning the same day.

The incident took place at around  9:00 am at Dong Luong Elementary School in Lang Chanh District, with one fifth-grade student killed and four others injured by the knifeman, Do Minh Chieu, who is now in custody, according to the district deputy chairman Le Duc Chung.

The man, who broke into the school by jumping over its fence, also stabbed a teacher when she rushed to stop him, and then fled the scene.

Local authorities immediately mobilized all forces to hospitalize the injured and hunt the suspect.

It took law enforcement only one hour to arrest Chieu, a Thanh Hoa resident.

The suspect is seen in this photo provided by the police.

As of Friday evening, the four wounded students and the injured teacher were still receiving treatment at a local hospital. Three of the students were severely injured, according to officers.

The knifeman still lives with his parents in Thanh Hoa’s mountainous Lang Chanh District and does not have a stable job, according to police. Local residents said he is addicted to online games.

The motive for the knife attack remains unclear and police are investigating further.

The knife used in the attack is seen in this photo provided by the police.

Also on Friday, police in Ho Chi Minh City  said they have arrested Truong Tin, 29, for allegedly killing his grandmother, mother and aunt the day before, when he was apparently high on drugs.

Like us on Facebook or follow us on Twitter to get the latest news about Vietnam!