Islamabad - The National Institute of Health (NIH) Monday confirmed another polio case.

The cause of contracting the virus was unknown yet and field investigation was underway, officials said. The victim child belongs to Peshawar. With this new case, the number of polio cases rises to 27 during the year of 2015 with four each from Balochistan and Sindh, 11 from Khyber Pakhtunkhwa and 8 from Federally Administered Tribal Areas.