AMMAN, Jordan — Negotiations between Jordan and the Islamic State over the fate of two hostages appeared to have collapsed on Thursday, according to a Jordanian with knowledge of the negotiations, raising fears that the extremists would carry out their threats to kill a Japanese journalist and a Jordanian air force pilot they are holding captive.
Jordan was prepared to meet the Islamic State’s demand to turn over an imprisoned would-be suicide bomber, Sajida al-Rishawi, delivering her to the Syrian-Turkish border by sunset on Thursday. But officials said the extremists had so far failed to provide proof that the pilot was still alive, so Ms. Rishawi remains in Jordan, the source said, speaking on the condition of anonymity.
Without proof that the pilot is alive, Jordan is not prepared to make the swap of the suicide bomber, who is in prison here sentenced to death, officials said.
The Islamic State had said that if Ms. Rishawi were released, they would free the Japanese hostage they are holding in Syria, Kenji Goto, a freelance journalist, and would not kill the Jordanian pilot, First Lt. Moaz al-Kasasbeh.
The militants did not promise to release the pilot, but Jordanian officials have said that they would free Ms. Rishawi only if the pilot were released unharmed. Jordan has made no mention of trading the Japanese journalist, although Japanese and Jordanian officials have said they have been working together on trying to resolve the hostage crisis.
The Islamic State originally set a deadline of Wednesday for Ms. Rishawi’s release, but extended it to Thursday at sunset. Reports that Jordan had not received the proof of life it demanded came less than two hours before sunset.
There was no official statement from the Jordanian government that Ms. Rishawi was still in the country, but officials repeated their position that they required proof that Lieutenant Kasasbeh was still alive.