KUALA LUMPUR: Tun Dr Mahathir Mohamad has thanked members of the public who continue to visit the grave of his late wife, Tun Dr Siti Hasmah Mohd Ali, more than a month after her death.

In a social media post today, the former prime minister said he was deeply touched by the visits and continued prayers for his wife.

"I am deeply touched and grateful for your presence and continued prayers for Hasmah," he said.

Dr Mahathir also apologised for being unable to visit her grave frequently or personally meet those who came to pay their respects.