Oscar-winning actress Angelina Jolie urged the international community to boost aid to Syrian refugees hit by what she called "the worst humanitarian crisis of the 21st century," a UNHCR statement said Wednesday.

Jolie, who is UNHCR special envoy for refugee affairs, visited the Jordan-Syria border overnight accompanied by head of U.N. High Commissioner for Refugees Antonio Guterres.

Jordan's King Abdullah II has endorsed a treaty with Britain expected to pave the way for the extradition of radical cleric Abu Qatada who has resisted deportation for the past decade, official Petra news agency reported Tuesday.

Petra said the king issued a royal decree "endorsing the Treaty on Mutual Legal Assistance in Criminal Matters between Jordan and the United Kingdom of Great Britain and Northern Ireland".

King Abdullah II vowed Sunday to protect Jordan from the war in Syria, after the United States announced its warplanes and missiles will remain in the kingdom at the end of military exercises.

"Should the world not act and help us adequately address this issue, and should this issue become a threat... then we are capable at any time to take the necessary measures to protect our country and people's interests," said the Jordanian ruler.

The Pentagon confirmed on Saturday that F-16 fighter jets and Patriot missile interceptors will remain in Jordan after the end of a joint military exercise this month.

"Secretary (Chuck) Hagel has approved a request from the Kingdom of Jordan for a detachment of F-16s and Patriot Missiles to remain in Jordan following the conclusion of the Eager Lion Exercise next week," spokesman George Little said in a statement.

Jordan's parliament has approved an agreement with Britain on the extradition of suspects wanted by Amman, including radical cleric Abu Qatada, an MP said Wednesday.

"Parliament on Tuesday approved a treaty with Britain to help Jordan extradite suspects from Britain," Khalil Attieh, the deputy house speaker, told Agence France Presse. "The agreement does not specifically mention Abu Qatada but it includes him and others."

With no end in sight to Syria's conflict, some refugees in Jordan are offering their daughters for early marriage in the hope of securing them protection as they face growing economic pressure.

Syrian refugee Abu Mohammad says he reluctantly opted to marry off his teenage daughter to a rich 40-year-old Saudi man, hoping to give her a better life and ease his family's financial hardships.

Jordanian journalists demonstrated on Wednesday against a "repressive" government decision to block unlicensed local news websites, as experts voiced alarm over freedom of expression.

"We gathered today to tell King Abdullah II that the government's repressive decision violates the constitution," Nasser Lafi, editor of Busala, or compass, news website, told Agence France Presse.

A young Jordanian man died in hospital on Wednesday after setting himself on fire outside the ministry of social development last week in despair over failing to meet the minister.

"Ahmad Robin, 23, died of severe burns that covered more than 90 percent of his body. We could not help him," Issam Shraideh, director of Amman's Bashir public hospital, told Agence France Presse.

With no end in sight to Syria's conflict, some refugees in Jordan are offering their daughters for early marriage in the hope of securing them protection as they face growing economic pressure.

Syrian refugee Abu Mohammad says he reluctantly opted to marry off his teenage daughter to a rich 40-year-old Saudi man, hoping to give her a better life and ease his family's financial hardships.

A Jordanian military tribunal jailed on Tuesday three men convicted of trying to join Syria's jihadist Al-Nusra Front and fight President Bashar Assad's regime.

"The state security court today initially sentenced the three to five years in jail each, but immediately halved the prison terms," a court official told Agence France Presse.