- Iraqis concerned that bilateral security pact will compromise the sovereignty of Iraq
- United States hopes to secure a status of forces agreement by the end of July
- A U.N. mandate governs the American military presence through the end of the year
- Muqtada al-Sadr said he is establishing a fighting force to battle U.S.-led troops
BAGHDAD, Iraq (CNN) -- Iraqi officials may pull out of security talks with the United States and develop their own legislation that would dictate the shape of the American military presence in Iraq.
The Iraqi government is contemplating this new tack out of frustration over the lack of success in negotiations with the United States over a long-term security agreement.
Haidar Abadi, an aide to Prime Minister Nuri al-Maliki, made the remarks to CNN on Thursday about the talks, which have sparked concern among Iraqis that a bilateral security pact will compromise the sovereignty of Iraq.
The United States hopes to secure a status of forces agreement by the end of July. At present, a U.N. mandate governs the American military presence through the end of the year.
Al-Maliki, speaking in Jordan on Friday, said "the first drafts that were proposed reached a deadlock," and both sides are putting new ideas on the table.
Meanwhile, firebrand Shiite cleric Muqtada al-Sadr said in a statement Friday that he is establishing a new fighting force to battle the U.S.-led troops in Iraq.
Sources familiar with the issue have told CNN they believe this is an embrace by al-Sadr of what the Americans call "Special Groups" -- the Iranian-backed rogue Shiite militants who have been fighting American and Iraqi troops.
A letter from al-Sadr, read at mosques in Iraq affiliated with his movement, said the "the resistance will be exclusively conducted by only one group. This new group will be defined soon by me."
The mainstream Mehdi Army has been in a cease-fire mode since last summer, an act that dramatically reduced violence in Iraq.
CNN's Michael Ware contributed to this report.