Is 'Train to Busan 2' in the works?

After the box-office success of suspense flick "Train to Busan," Korean actor Gong Yoo teased that it will have a sequel.

On Monday, Gong, who played the role of Seok Woo in the zombie film, tweeted about the possibility of a "Train to Busan 2."

And there will be a sequel of Train to Busan. For you all. 사랑해!

— Gong Yoo (@ActorGongYoo) September 13, 2016

"And there will be a sequel to Train to Busan. For you all," Gong said.

According to Korean pop news website Soompi, Gong, in an interview with Sports Chosun, talked about the potential for a sequel.

He also talked to director Yeon Sang Ho about the possibility of his character still appearing in the sequel.

Last month, Yeon released "Seoul Station," which is an animated prequel to the film.

[Review: 'Train to Busan' is more than just a zombie flick]

Meanwhile, Gong posted photos of him hanging out with the other cast members of "Train to Busan."

It was like yesterday we were working for this film and now it is a huge hit. Thank you all! pic.twitter.com/TN236IbsEb

— Gong Yoo (@ActorGongYoo) September 13, 2016

보세요! One last treat from me. The Zombie family. ☺ 금방 갔다 올께요! pic.twitter.com/QP6Hy6LGT4

— Gong Yoo (@ActorGongYoo) September 14, 2016