The 72 year old took a tumble outside a hotel in Bangkok as he stepped out of a taxi, but his injuries are not believed to be serious.

"(I am a) walking disaster... I'm with the doctors now. They're trying to put everything back together... But I'm OK," he tells Australia's News Corp.

The accident comes less than five years after a near-fatal fall at his home in Australia left him in a coma.

Meldrum tumbled from a ladder while putting up Christmas decorations in 2011 and suffered numerous injuries including a fractured skull, a broken collar bone, a punctured lung, and extensive breaks and fractures to his ribcage.

He was initially placed in an induced coma and later underwent several surgeries, including an operation on his spine, before undergoing extensive rehabilitation treatment which helped him make a successful recovery.