"The government is taking the matter very seriously," Foreign Office spokesperson Nafees Zakaria said, adding that the abducted nationals had no link to the China-Pakistan Economic Corridor.
Lee Zing Yang, 24, and Meng Li Si, 26 -- who were abducted from Jinnah Town in Quetta on May 24 and later murdered by the militant Islamic State group -- were suspected of illegal missionary work.
The Chinese government said it would work with Pakistani authorities to investigate reports that the two were missionaries.
"We will cooperate with the Pakistan government and launch an investigation in accordance with the law," the Chinese Foreign Ministry said on Wednesday.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)