An American woman and her family released by a Taliban-linked group are still in Pakistan after her Canadian husband wouldn't board a plane to the U.S., according to NBC News.

Caitlan Coleman, who is originally from Pennsylvania, and her husband Joshua Boyle were kidnapped by militants while hiking in Afghanistan in 2012. Coleman was pregnant when she was captured and the couple had three children while being held, NBC said.

A U.S. plane was ready to take the family out of Pakistan, but Boyle did not want to fly, according to NBC.

The Associated Press reported that Boyle declined to get on the plane at the last minute. It said he was nervous about being in "custody" because of his background.

Boyle was previously married to the sister of Omar Khadr, a Canadian man who spent 10 years at Guantanamo Bay after being captured in 2002 in a battle at an al-Qaeda compound in Afghanistan, AP said.

Officials already discounted a link between that background and Boyle's capture in Afghanistan. One official described it as a "horrible coincidence," according to AP.

AP said the family's location was unclear. They were not in U.S. custody, but were together in a safe, undisclosed location in Pakistan, AP said.

NBC said the five family members were with workers at the U.S. embassy in Pakistan.

The couple has told U.S. officials that they want to fly commercially to Canada, according to AP.

The five family members were held by the Haqqani network, an insurgent group that supports the Taliban.

Coleman and Boyle left in the summer of 2012 for a trip to Russia, Kazakhstan, Tajikistan and Kyrgyzstan. They then traveled to Afghanistan, according to AP.

Coleman's parent last heard from Boyle in October 2012 from an internet cafe in what Boyle described as an "unsafe" part of Afghanistan.

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