Maryam Nawaz, daughter of Prime Minister Nawaz, on Saturday said the prime minister has been diagnosed with a "small kidney stone".

The premier's daughter disclosed the information in a tweet and added that the kidney stone does not need any "intervention".

Earlier, Minister of State for Information and Broadcasting Maryam Aurangzeb said Prime Minister Nawaz Sharif is well and all his test results were clear after rumours circulated earlier today regarding the premier's health.

"The prime minister has been working tirelessly as he wants to see completion of all projects by 2018, hence, he was under some stress," said Aurangzeb.

She added the premier had his checkup conducted at a private hospital in Lahore earlier today, and the test results were clear.

"The prime minister had a stomach ache since yesterday, but we are thankful to God that all his tests results are clear."

The minister added that Nawaz has returned to his family home in Raiwind.

Earlier in May 2016, Nawaz underwent an open-heart surgery in London. The surgery lasted more than four hours, during which his arteries were successfully grafted.