UNHCR denies allegations

Later in the day, the UNHCR issued a clarification, saying that there have been no changes in the textbooks currently used in refugee schools in Pakistan.

The UNHCR made it clear that the curriculum taught in Afghanistan was also being taught in the Afghan refugee schools in Pakistan.

"The curriculum of Afghanistan is used in refugee schools in Pakistan. This helps prepare pupils for their integration into the schooling system in Afghanistan should they decide to return," the statement read.

"Over a number of decades, UNHCR has provided funding to cover the printing costs of school textbooks for Afghan refugees. No textbooks have been or will be distributed to schools in refugee villages containing any objectionable content," it added.