Jordan announced on Monday that its ambassador to Israel would return to his post in Tel Aviv three months after being recalled over "violations" at Jerusalem's Al-Aqsa mosque.

"We have asked Ambassador Walid Obeidat to return to Tel Aviv," government spokesman Mohammad al-Momani told AFP.

The U.N. Security Council demanded the immediate release of all hostages held by the Islamic State group, as Jordan vowed to do everything it can to save the life of a pilot captured by the militants.

The 15-member council condemned on Sunday the "heinous and cowardly" murder of a Japanese journalist after the jihadist group claimed he had been beheaded.

Jordan vowed Sunday to do all it could to save an airman held by the Islamic State group after the jihadists killed a Japanese journalist they had been holding.

Safi Kassasbeh, the father of pilot Maaz al-Kassasbeh, denounced the killing of Kenji Goto and told AFP the Jordanian "government is responsible" for his son's fate.

Japan' deputy foreign minister has said negotiations with the Islamic State group threatening to execute a Jordanian pilot and a Japanese journalist have become "deadlocked," local media reported Saturday.

Yasuhide Nakayama, who is leading Tokyo's emergency response team in Amman, told reporters in the Jordanian capital late Friday that there had been no progress in trying to secure the release of Japanese journalist Kenji Goto and airman Maaz al-Kassasbeh.

Jordan's military said on Friday that it was still awaiting proof that a warplane pilot threatened with execution by the Islamic State group is safe.

IS had vowed to kill F-16 airman Maaz al-Kassasbeh by sunset on Thursday unless Amman handed over an Iraqi female jihadist in return for captured Japanese journalist Kenji Goto.

Two managers of a Jordanian website have been arrested for spreading rumors that an Iraqi jihadist had been freed in exchange for a Japanese hostage, a judicial source said Thursday.

The owner of the Saraya News site, Hashim al-Khalidi, and editor-in-chief Seif Obeidat could face up to 15 years in prison if convicted.

Jordan demanded proof Thursday that a pilot threatened with execution by the Islamic State group was alive, as a deadline set by the jihadists to free a female militant expired.

IS had vowed to kill airman Maaz al-Kassasbeh unless Iraqi jihadist Sajida al-Rishawi was handed over at the Turkish border in return for captured Japanese journalist Kenji Goto.

Jordan offered Wednesday to free a female jihadist in exchange for a Jordanian pilot held by the Islamic State group, which is threatening to execute the airman and a Japanese journalist.

It came after the parents of the hostages made last-ditch pleas for their lives ahead of a deadline set by IS for the release of the would-be suicide bomber.

Jordan offered Wednesday to free a female jihadist in exchange for a Jordanian pilot held by the Islamic State group, which is threatening to execute the airman and a Japanese journalist.

It came after the parents of the hostages made last-ditch pleas for their lives as a deadline set by IS for the release of the would-be suicide bomber approached.

An angry Japanese prime minister on Wednesday slammed as "utterly despicable" an Islamist militant threat to kill both a Japanese hostage and a Jordanian pilot unless Amman releases a jihadi bomber.

The clock was ticking towards the 24-hour deadline Islamic State group militants set in their latest chilling video, which warned they will execute freelance journalist Kenji Goto and airman Maaz al-Kassasbeh if they do not get their way.