A user cannot send pictures on Kakaotalk after a fire at the company's data center disrupted the messaging app and other Kakao services, Oct. 16. Korea Times file

Kakao, the operator of Korea's dominant messaging app KakaoTalk, said Monday that it is working for a full recovery of its services disrupted by a fire at a data center over the weekend.

"Most functions of KakaoTalk and other Kakao services are being normalized," an official from Kakao said. "Some of the less popular services are still unavailable, but we're working on them"

Nearly all online services provided by Kakao, including KakaoTalk, suffered a massive malfunction from Saturday afternoon due to a fire at SK CC located in Pangyo, just south of Seoul.

SK CC houses the data centers for Kakao and Naver, Korea's two major tech giants.