SANDAKAN: A single mother here is seeking public cooperation to find her son whom she lost contact with last Jan 7. 

According to Madam Lu, she last spoke with her son, Tsen Keng Chung, 34, on Jan 4 for half an hour on the phone. During the conversation, she did not notice anything out of ordinary. 

On Jan 7, Madam Lu tried to call her son but the call went straight to voicemail and there was no response from her son until now. 

Madam Lu added that Keng Chung had been working in West Malaysia for many years and his last trip back to Sandakan was in 2017.