Daniel Cleaves, charged recently with possibly transmitting HIV to a woman he picked up at bar in Bethesda, was jailed on new charges Friday after another victim stepped forward with similar allegations, police said.

Cleaves, 28, was accused of having the virus and transmitting it or possibly transmitting it to someone who didn’t know he was infected, according to court records. He was booked into the Montgomery County Detention Center on Friday afternoon, said Officer Nicole Gamard, a police spokeswoman.

“Detectives believe there may be additional victims,” she said.

On Oct. 13, after seeing news coverage about Cleaves, the second purported victim spoke with detectives. She said she met Cleaves in March 2013 at a bar in Bethesda. They went back to her residence and had sex, according to arrest records.

Over the next year, she said, she saw Cleaves at different bars in Bethesda. On Sept. 13, 2014, she was at Flanagan’s Harp & Fiddle with a group of friends. During last call, Cleaves struck up a conversation. The two went to her apartment in Bethesda and had unprotected sex twice, according to police charging documents.

“The victim advised that at no time did the defendant ask about birth control or offer to use a condom,” the charging documents state. Nor did Cleaves tell her he was HIV positive, according to court records. It was not known whether the woman has tested positive for the virus.

In the earlier case, Cleaves is accused of having unprotected sex as many as nine times over three days with a different woman he met at the same bar. He didn’t tell he was HIV-positive, police allege. The woman was prescribed medication for HIV prevention, according to arrest records. Cleaves is due in court Nov. 14 for that case.