Douglas County prosecutors Wednesday charged a 24-year-old Lawrence man with aggravated battery for injuring another man early Wednesday during an altercation downtown.

James George, Douglas County’s pro-tem judge, set bond at $15,000 for Anthony M. Bassett, who was accused of punching another 24-year-old Lawrence man in the face.

Sgt. Matt Sarna, a Lawrence police spokesman, said the victim and another man alleged the altercation occurred about 1:30 a.m. as Bassett and another man were walking by them in the 900 block of Massachusetts Street.

The victim said he was punched and suffered a possible broken nose. Police later arrested Bassett inside Jazzhaus, 926 1/2 Mass., and officers were not able to find the other suspect.

A Lawrence Memorial Hospital spokeswoman said the victim had been treated and released from the emergency room.

Jessica Dotter, a legal intern in the district attorney’s office, said in court Wednesday that Bassett had a 2008 conviction in Douglas County for misdemeanor battery on a law enforcement officer and misdemeanor battery. Bassett’s next hearing is scheduled for 2 p.m. Tuesday.