A woman escaped a makeshift cinder block 'dungeon' in Oregon, police say. The FBI believes there are more victims in other states

After a woman escaped from a makeshift "dungeon" made of cinder blocks in a man's Oregon home, the FBI says it is looking for additional victims in other states.

The man, 29-year-old Negasi Zuberi, is in federal custody for kidnapping across state lines after a woman from Seattle escaped from his home in Klamath Falls, Oregon, according to a news release from the FBI Portland Field Office. The woman also claimed she was sexually assaulted, the FBI said.

Zuberi, who has lived in at least 10 different states since 2016, has been linked to violent assaults in at least four different states, according to the FBI. Investigators have reason to believe there could be several other victims, the agency said.

CNN is attempting to identify legal representation for Zuberi.

On July 15, Zuberi traveled from his home in Klamath Falls to Seattle where he posed as an undercover police officer to solicit the services of a prostitute, according to the FBI's news release. The victim said Zuberi pointed a Taser at her, placed her in handcuffs and leg irons and then put her in the back seat of his car, the FBI said.

"Zuberi told the victim she was under arrest," the Klamath Falls Police Department said in a news release. "The victim reported Zuberi had a firearm, police patches, a taser, and other law enforcement equipment."

He then drove back to his Klamath Falls home - more than 450 miles away - stopping on the way to sexually assault her, the victim told detectives, the news release said.