South Korean authorities and Interpol are hunting for a Filipino who allegedly killed a migrant worker also from the Philippines, after the victim’s remains were found in a factory water tank.

The Department of Foreign Affairs in Manila (DFA) confirmed on Saturday that bones found in a factory water tank in South Korea last month belonged to a Filipino who went missing in 2016, CNN Philippines reported.

Elmer Cato, a DFA spokesperson, said that officials in South Korea had identified the suspect as a former Filipino migrant worker who is now believed to be back in the Philippines.

“According to South Korean police, the suspect is in the Philippines and they have requested the assistance of the Philippine National Police and Interpol,” Cato said, adding that it was a murder case.

Foreign Affairs secretary Alan Peter Cayetano said they had identified the victim’s family through a DNA test and the Philippine Embassy in Seoul would repatriate his remains shortly, the Manila Bulletin reported.

The man’s family is said to hail from Iloilo.

Read: Bones found in water tank in Korea ‘may be missing Filipino’