Actor Yoon Dae-yeol ran to the scene of a gas explosion in Incheon and shut off an LPG valve before reporting it, KBC광주방송 reported on Wednesday. The broadcaster identified him as a performer who appeared in the film "Crime City."

The blast occurred at a commercial building in the Geomdan area, according to 인천일보, which described residents hearing a loud noise and glass shattering. YTN reported that four people suffered serious or minor injuries in the explosion.

According to 경향신문, Yoon closed the valve and filed the report, saying afterward that he acted to prevent further damage. 뉴시스 reported that he told reporters he was sorry for drawing media attention and that the victims should come first.

The accounts across the outlets place a private citizen at the center of the emergency response before authorities arrived, though the reporting summarized here does not detail the timing of his actions or the condition of the injured.

What to watch next: whether authorities confirm the cause of the leak and release further details on the condition of those hurt.