Afghan and U.S. forces rescued the kidnapped son of a former Pakistani prime minister, following a three-year Taliban captivity in Afghanistan, Pakistan said on Tuesday.

Ali Haider Gilani, son of ex-premier Yusuf Raza Gilani, “has been recovered today in a joint operation carried out by the Afghan and U.S. security forces in Ghazni, Afghanistan,” the Pakistani foreign office said in a statement.

It said he would be transferred to Pakistan after a medical check-up.

“When we first heard the news, we didn’t believe it and only believed it once the foreign office confirmed it,” Ali Musa Gilani, Ali Haider’s brother, told Pakistan’s Geo TV.

“Right now, we don’t have any plans to celebrate. We are just waiting to see his face.”

Last year, the elder Gilani, whose secular anti-Taliban Pakistan People’s Party led several major offensives against militants, said the kidnappers demanded the release of several al-Qaeda prisoners in exchange for his son.

Gilani, believed to be in his 30s, was abducted from his home town of Multan, in southern Punjab province, two days before Pakistan’s landmark May 11, 2013 general elections.