London: Former Pakistan Prime Minister Nawaz Sharif is awaiting a medical procedure in the UK which restricts his travel, a Pakistan Muslim League-Nawaz (PML-N) spokesperson has said.

The 70-year-old three-time former premier's aides in the UK dismissed the prospect of the Imran Khan-led government seeking Sharif's deportation from the UK government because he was in the country on medical grounds on a visit visa.

"Mian Sahib is here on medical grounds and is awaiting a medical procedure," a PML-N UK spokesperson said on Monday. In reference to the deportation claims emanating from Pakistan, he said "He is here on a visit visa for medical treatment and wasn't handed over to the UK government."

Sharif left for London in November last for treatment after the Lahore High Court allowed him to go abroad on medical grounds for four weeks.

According to Sharif's physician, the top leader of the PML-N is suffering from complex multi-vessel coronary artery disease and substantial ischemic and threatened myocardium for which he is due to undergo surgery.