Wife pleaded as another British hostage, Alan Henning, to be beheaded by ISIS

ISIS has threatened to behead another British National, Alan Henning, if the United States did not stop its airstrikes in Iraq. Henning, a taxi driver from Bolton, northern England, was part of a team of volunteers traveling from Britain to Syria to deliver aid to people in need when he was abducted in December 2013.

The wife of British hostage Alan Henning pleaded with ISIS to release her husband, according to a statement released Saturday by the UK Foreign Office.

"I pray that the people holding Alan respond to my messages and contact me before it is too late," the message from Barbara Henning said.

"When they hear this message I implore the people of the Islamic State to see it in their hearts to release my husband Alan Henning."