Veteran politicians Dr Mahathir Mohamad and Lim Kit Siang should be caring for their grandchildren in their twilight years, according to Tourism and Culture Minister Nazri Abdul Aziz.

He said this in response to what he claimed was the tendency of the pair to shoot their mouths off.

"The attitude of Mahathir and Kit Siang is the same. They just say whatever that comes to mind even though they have not discussed with their own parties.

"This is what we call the nostalgia of old folks. Their time have passed, they should go back to care for their grandchildren," he told reporters in Kuala Lumpur.