Former Pakistan prime minister and Pakistan Muslim League-N Chief Nawaz Sharif was on Wednesday admitted to a London hospital after complaining of heart pain.

Party sources said he felt pain in the chest region early on Wednesday morning and was taken to a Central London hospital for check where the doctors decided to keep him for further observation, the APP reported.

The 64-year-old Sharif has been in the British capital for the past few days after arriving from Lahore via Switzerland on a private visit.

Meanwhile, Punjab Chief Minister Shahbaz Sharif has also reached London on hearing about the medical problem of his older brother.