WWW- TMZ has learned that officials from the Miss USA pageant will make a “major announcement” today and may strip reigning Miss USA Tara Conner of her title due to inappropriate behavior.

Sources tell TMZ that executives from the Miss USA organization and NBC (which broadcasts the pageant) met Tuesday to discuss Conner and alleged incidents of her inappropriate behavior, including her conduct at New York City bars. While no one from the pageant would comment on the rumored troubles, several sources tell TMZ that a big announcement is expected some time Thursday. According to these sources, officials are extremely unhappy with the current Miss USA’s conduct in public.

According to pageant rules, if Connor is removed, first runner-up Miss California Tomiko Nash will assume the duties of Miss USA and complete the remainder of the beauty queen’s reign. When TMZ contacted a rep for Nash, we were told they could “neither confirm nor deny” that she would be taking over the title.

20-year-old Conner, who hails from Russell Springs, Kentucky, was crowned Miss USA in April of 2006.

TMZ contacted the NBC publicist yesterday for comment. She said she was unaware of any trouble but would look into it. A few hours later, she said she was waiting for call-backs. She then went completely off the radar screen.