Jordan’s Talks With ISIS for Hostage Release Said to Fail

AMMAN — Negotiations between Jordan and the Islamic State over the fate of two hostages appeared to have collapsed on Thursday, according to a source in contact with Jordanian officials, raising fears that the extremists would carry out their threats to kill a Japanese journalist and a Jordanian air force pilot they have 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.