Greg Alyn Carlson, one of the country's Ten Most Wanted Fugitives, was likely shot and killed in a standoff with authorities on Wednesday, according to the FBI.

The shootout happened early Wednesday morning at a hotel in Apex, North Carolina, about 15 miles west of Raleigh, as police investigated reports about a "suspicious vehicle," the FBI said in a statement.

An officer with the Apex Police Department notified the FBI because the vehicle had South Carolina plates linked to 47-year-old Carlson, an alleged sexual predator who was wanted in connection with multiple armed assaults in California.

The suspect, believed to be Carlson, was shot and killed during an altercation with the FBI, but the bureau couldn't positively identify him as of Wednesday evening.

A television cameraman films the photographs of an alleged sexual predator, Greg Alyn Carlson, as he is listed on the FBI Ten Most Wanted fugitive list, during a news conference at the FBI headquarters in Los Angeles on Thursday, Sep. 27, 2018. (AP Photo/Damian Dovarganes)(The Associated Press) A television cameraman films the photographs of an alleged sexual predator, Greg Alyn Carlson, as he is listed on the FBI Ten Most Wanted fugitive list, during a news conference at the FBI headquarters in Los Angeles on Thursday, Sep. 27, 2018. (AP Photo/Damian Dovarganes)

"The subject is believed to be FBI Top Ten Most Wanted Fugitive Greg Allen Carlson wanted in connection with multiple armed sexual assaults in Los Angeles, California," FBI officials said in a statement. "Positive identification will come from the medical examiner's office. While this internal review process is occurring, no further comments can be made," FBI officials said in a statement.

Carlson was placed on the FBI's list of Top Ten Fugitives in September 2018. The FBI had offered a reward of up to $100,000 for information leading to his capture.

Carlson, of California, was charged with burglary, assault with intent to commit rape and assault with a deadly weapon in September 2017. He posted bond and was released three weeks later and has allegedly been on the run ever since, the FBI said.

FILE - This undated file photos released on Thursday, Sept. 27, 2018 by the FBI shows an FBI wanted poster of Greg Alyn Carlson. The FBI tracked Carlson, a man they think was one of the country's 10 most-wanted fugitives, to a North Carolina motel, where agents shot and killed him on Wednesday, Feb. 13, 2019. (FBI via AP, File)(The Associated Press) FILE - This undated file photos released on Thursday, Sept. 27, 2018 by the FBI shows an FBI wanted poster of Greg Alyn Carlson. The FBI tracked Carlson, a man they think was one of the country's 10 most-wanted fugitives, to a North Carolina motel, where agents shot and killed him on Wednesday, Feb. 13, 2019. (FBI via AP, File)

At some point, the FBI believes he obtained a stolen handgun, a rental car and "a lot of cash," Special Agent Scott Garriola, a member of the FBI’s Los Angeles Fugitive Task Force, said in a statement last year.

"This individual is a serious threat to the community," Garriola said. "Investigators have also linked him through DNA to sexual assaults dating back to 2003."

"He’s got some familiarity with Florida, but he could be anywhere," Garriola added. "He has a lot of cash, and he’s indicated that he will not turn himself in. We need the public’s assistance to help apprehend him."

The FBI said the suspect will be identified after a review from the medical examiner's office.