A Jordanian MP was released from jail on Tuesday for "lack of evidence", a day after he was charged with inciting a colleague to shoot at another deputy in parliament.

"Yahia al-Saud was released from jail today on orders from the attorney general who prevented his trial for lack of evidence," a judicial official told Agence France Presse, without elaborating.

Three Syrians went on trial in Jordan on Tuesday for allegedly trying to smuggle 36 remote control detonators into their country to help anti-government rebels, a court official said.

"The three suspects pleaded not guilty at the start of their state security court trial," he told Agence France Presse, adding that the case was adjourned until November 13.

Human Rights Watch (HRW) on Tuesday urged Jordan's parliament to amend or eliminate "vague" penal code provisions used by authorities to try peaceful pro-reform protesters on terrorism-related charges.

The Jordanian government has proposed to parliament, currently in recess, a bill restricting the jurisdiction of the military State Security Court over civilians to four categories of offenses: terrorism, treason, currency counterfeiting and drugs.

A Jordanian MP was arrested on Monday for his alleged role in a September fight in parliament, where another lawmaker fired a Kalashnikov assault rifle at a third colleague, an official said.

"Yahia al-Saud was detained today after prosecutors charged him with inciting murder, defamation and slander," the judicial official told Agence France Presse.

U.N.-Arab League envoy Lakhdar Brahimi insisted Wednesday that only a political solution will help end the "suffocating and dangerous" conflict in Syria, in talks with Jordan's foreign minister.

"The Syrian crisis is suffocating and dangerous. It threatens Syria and the entire region. It is the most dangerous to stability and security" Brahimi said during the meeting with Nasser Judeh, the foreign ministry said.

Jordan will deport 5,723 "illegal" Syrian workers next month unless they obtain government permits, the labor minister said Monday, as the country struggles to cope with an influx of refugees.

Nidal Qatamin told state-run Petra news agency that 15,000 illegal workers, including 5,723 Syrians, were in the kingdom.

Britain said on Sunday it will give Jordan £12 million ($19 million, 14 million euros) to help local communities in the country cope with hundreds of thousands of Syrian refugees.

"Jordan will receive urgently needed support to keep essential public services running and prevent tensions between local people and growing numbers of Syrian refugees," British International Development Secretary Justine Greening said.

Syrian rebels seized a guard post on the Jordanian border on Wednesday after a month of fierce fighting, the Syrian Observatory for Human Rights said.

"Rebel fighters took control of the Hajanah border battalion post near the city of Daraa after laying siege to it for two months and fierce clashes around it lasting a month," the NGO said.

Jordan's King Abdullah II urged Egyptians to make choices about their future that will bring about unity, in remarks during talks Tuesday with the troubled country's interim president, the palace said.

"Jordan supports choices the people of Egypt make about their future that would enhance their national unity, stability and security," it quoted the king as telling Mansour Adly, who was in the kingdom as part a regional tour.

Three Jordanian men have been arrested for carrying posters supporting Egypt's Muslim Brotherhood and ousted Islamist president Mohammed Morsi, a judicial official said on Tuesday.

"The three men were arrested last week. They were carrying posters with the slogan of Rabaa," he told Agence France Presse.