Speaking by telephone to The Star, Jonathan Koh, 32, said his mother Susanna Liew, 61, was deeply affected by the kidnapping of her husband and had gone to Singapore to stay with friends and receive counselling.

“My father’s abduction is having a toll on all of us. But it is affecting my mother the most.

“Friends suggested that she seek some form of trauma counselling here (in Singapore). They told us that counselling will provide some form of relief,” The Star quoting him as saying.

Although unsure how long they would stay in Singapore, Jonathan said both were looking forward to coming home to Malaysia.

When asked if there had been any progress in the case, now that the reward money was increased to RM100,000 for the safe recovery of his father, Jonathan said “nothing concrete” had turned up so far.

He said many had messaged the dedicated number (011-3973-2670) claiming to have seen a car, but could not provide any details.

“So neither the police nor us can follow up on the information provided,” he said.

Koh, 62, was abducted by a group of masked men on Jalan SS4b/10, Petaling Jaya, less than 100 metres from the Police Housing Complex. He was driving a silver Honda Accord bearing the licence plate ST 5515 D.

The pastor was at the centre of controversy in 2011 after his NGO, Harapan Komuniti, was accused by the Selangor Islamic Religious Department (Jais) of proselytising Muslims, following a raid at a thanksgiving and fundraising dinner at the Damansara Utama Methodist Church.

Later he received a death threat in the form of a bullet that was sent to his home, a close friend revealed.