Former prime minister Najib Abdul Razak has hit back at critics who questioned his whereabouts during his trip to Singapore.<br /><br />This was after photographs of Najib posing beside a Rolls Royce and golfing in Singapore were circulated on social media.<br /><br />"This is also an issue? Am I to spend 24 hours a day for six days with my grandchild when I was in Singapore?"
