"The conditions for conducting fair polls and creating a real political environment are still absent," head of the Muslim Brotherhood movement Hammam saeed said in a statement posted on the movement's website.
He pointed out that the group and its political arm, the Islamic Action Front (IAF), had not decided so far to take part in the November 9 elections "which we believe will be nothing more than a formal polling process."
"We are studying the our choices in this respect and will be consulting other influential forces in the country, including political parties, trade unions and institutions of the civic society," he said.
King Abdallah dissolved the lower house of Parliament last November, two years before the completion of its four-year term, amid reports that the chamber had failed to perform its legislative and supervisory functions.
Islamists had charged that the 2007 polls were "rigged" and the state-funded National Center for Human Rights (NCHR) acknowledged that certain "irregularities" were committed during the polling process.
The IAF won only 6 seats in the outgoing 110-member House of Representatives, compared with 17 in the previous chamber.
In response to the monarch's instructions, Prime Minister Samir Rifai pledged that the forthcoming elections would be held in a "transparent and fair atmosphere."
The government also adopted a temporary new election law that sought to plug the loopholes in the previous legislation, including the buying of votes which were reportedly rampant in the previous 2007 polls.
"The tools that were used in rigging the previous elections are still in force," Saeed said.
He also charged that the present government "still targets the Islamic movement and other effective forces in society and goes ahead with cracking down on public freedoms."
