Jordan's Queen Rania on Tuesday urged support for U.S.-led air strikes against the Islamic State jihadist group, saying the future of the Middle East and Islam was at stake.

"Our silence is the greatest gift" for IS, which has seized large swathes of Iraq and Syria, she told participants at a media summit in Abu Dhabi.

Lebanon came in 14th place as a country most affected by terrorism in a list of 162 nations, according to a new global study.

The London-based Institute for Economics and Peace said Lebanon got a score of 6.4 and joined 8 other countries that saw increased terrorist attacks in 2013 when compared to 2012.

A Jordanian court on Monday sentenced five people to jail for being members of the Islamic State group and promoting the jihadist organisation on the Internet.

Two other trials of suspected jihadist supporters, including a man accused of operating as a cook for Al-Qaida's Syria branch, also got underway as part as a crackdown on Islamist militants.

Jordan's tough stance towards Israel over Jerusalem's Al-Aqsa mosque reflects a determination to preserve its custodianship of the flashpoint site as well as its own stability, analysts say.

Jordan is cracking down on firebrand preachers and online extremism to tackle jihadists after joining U.S.-led air strikes on the Islamic State group.

The desert kingdom shares borders with conflict-hit Iraq and Syria, and is struggling to cope with hundreds of thousands of Syrian refugees, adding to its own problems with homegrown Islamists.

U.S. Secretary of State John Kerry said Thursday that steps were agreed at talks in Amman to lower tensions between the Israelis and Palestinians.

After talks with Israeli Prime Minister Benjamin Netanyahu and Jordan's King Abdullah II, Kerry said "firm commitments" had been made to maintain the status quo at holy sites in Israeli-annexed east Jerusalem.

Social Affairs Minister Rashid Derbas said the number of Syrians seeking refuge in Lebanon has been dropping although a decision on not to accept more refugees hasn't been fully implemented yet.

The UNHCR reports show that the number of refugees in Lebanon began to decline, Derbas told An Nahar newspaper in remarks published on Tuesday.

Jordan has flown humanitarian aid to Iraq's western Anbar province, where jihadists from the Islamic State group have seized ground and sown fear among the population, the royal court said Monday.

"A Royal Air Force aircraft laden with huge quantities of humanitarian aid and other supplies to the Iraqi people... landed at the Ain al-Assad airport" in Anbar, a statement said.

A Jordanian court on Monday sentenced four men to jail on charges of membership of the Islamic State group and for promoting the jihadist organization on the Internet.

The four Jordanians were arrested in August and put on trial at the state security court last week.

The head of Jordan's Muslim Brotherhood called Friday on the government to scrap its peace treaty with Israel after clashes between Israeli police and Palestinians at Jerusalem's flashpoint Al-Aqsa mosque.

At a rally in Amman attended by hundreds of supporters, Hammam Saeed said the government's decision to recall its ambassador in protest at ongoing altercations around Al-Aqsa did not go far enough.