Jordan's King Abdullah II and Palestinian president Mahmoud Abbas called Wednesday for a "comprehensive" solution in Syria, as Washington and its allies considered military action against the kingdom's northern neighbor.

"The king and Abbas discussed the Syrian crisis and urged a comprehensive solution to the crisis that would end the suffering of the Syrian people," a palace statement said after the two leaders met in Amman.

Jordan's opposition Islamists on Wednesday rejected a possible Western military action against the Syrian regime, warning of "dangerous repercussions" for the region.

"We reject any kind of military intervention in Syria, regardless of its motives and justifications," said the Islamic Action Front, the political arm of Jordan's Muslim Brotherhood, urging the international community to turn to negotiations.

Polling stations in Jordan opened Tuesday in municipal elections with the impact of a huge Syrian refugee influx on a struggling economy stoking voter apathy and resentment.

The Muslim Brotherhood, the main opposition party, is boycotting the polls, charging that, despite repeated promises since the Arab Spring of 2011, there is no real readiness for change.

Senior military officers from Western and Muslim countries were gathering in Jordan Monday to discuss the regional impact of the war in Syria, Jordanian officials said.

State-run Petra news agency quoted a Jordanian military spokesman as saying that the meeting comes at the invitation of Jordan's chief of staff Meshaal Mohammed al-Zaban and General Lloyd Austin, head of Centcom, the U.S. command responsible for 20 countries in the Middle East and Central Asia.

Jordan on Sunday condemned chemical attacks in Syria, urging punishment for those responsible, days before it is due to host a meeting of Western and Muslim military commanders on Syria.

"We strongly condemn and denounce the horrible killings in Syria," Foreign Minister Nasser Judeh told a joint news conference with his Egyptian counterpart Nabil Fahmy.

Jordanian Prime Minister Abdullah Nsur reshuffled his cabinet on Wednesday ahead of municipal elections next week, appointing two more women but leaving the foreign, interior and finance portfolios unchanged.

The newcomers include Lana Mamkegh, a state television presenter and columnist, as culture minister and Lina Shabeeb, a university professor, at transport.

Jordan's Nuclear Regulatory Commission has given the go-ahead for a first nuclear research reactor as the desert kingdom, which lacks any oil, seeks to meet its energy needs.

The five-megawatt reactor will be built at the Jordan University for Sciences and Technology near the northern city of Irbid, commission chief Majad Hawwari said.

Amnesty International urged Jordan on Tuesday not to deny entry to people fleeing the war in Syria, saying families with children have had to wait at the border in recent days.

Since the beginning of the conflict in March 2011, Syrians fleeing the fighting have streamed across the border into Jordan, which says it is hosting some 550,000 refugees.

Jordan's King Abdullah II on Tuesday urged Muslim clerics attending a meeting in Amman to help contain the spillover of Syria's sectarian strife into the region.

"You are the scholars of the Islamic world and it is your responsibility to confront the ethnic and sectarian strife in Syria," the king told the group of clerics taking part in a conference at Jordan's Royal Aal al-Bayt Institute for Islamic Thought.

Jordanian Prime Minister Abdullah Nsur on Monday urged Egypt's military to remain "firm" despite condemnation of a crackdown on Islamist protesters, saying the fate of the country was at stake.

"Jordan's position towards what is happening in Egypt seeks to support the state. The Egyptian state must not melt or erode or turn into a failed country," Nsur told a news conference.