Cpl. Kyle Gautsch of the Harrisburg Police Department says Berry was taken into custody early Saturday morning on three charges of simple assault. Gautsch said there "was a weapon allegedly brandished during the incident."
Berry, who is from Harrisburg, was also arrested in that area June 23 on suspicion of DUI, failure to stop and render aid from an accident and other counts.
Gautsch told the Detroit Free Press earlier Sunday that Berry was arrested around 2:30 a.m. Saturday, but is "no longer at our holding facility." Gautsch declined to tell the paper if the firearm was registered.
"I would just hope that everybody just holds their judgment on this matter," said Corky Goldstein, Berry's lawyer. "There's a lot more to this situation. ... I know Aaron is very upset over this whole situation. Let's give the opportunity for all the facts to come out."
Berry was set to enter a diversionary program following the June arrest, the Free Press reported Tuesday. It was unknown how the cornerback's latest incident affected that deal.
Berry's attorney in the DUI case told the paper he was unaware of a second arrest.
"We are extremely disappointed by the reports involving Aaron Berry," the Lions said in a statement on their website Sunday. "We are currently gathering more information and will have further comment when appropriate."
The University of Pittsburgh product is the latest Lions player to be arrested this offseason.
Besides Berry's previous arrest, second-year players Nick Fairley and Mikel Leshoure have each been arrested twice since the season ended. Offensive tackle Johnny Culbreath also had a marijuana-related run-in with police this offseason and monticellolive.com reported Friday that defensive tackle Corey Williams appeared in court Wednesday to face a DWI charge stemming from an arrest on June 18, 2011.
Pro Bowl defensive tackle Ndamukong Suh said last week that his teammates must be "accountable" to themselves and to each other.
"Everybody has to be accountable for themselves, and obviously we as teammates need to hold each other to a higher standard," Suh said, according to Yahoo! Sports. "And that's being addressed, and some of our teammates will have to deal with repercussions from the league, and I think they'll handle that the right way and move forward and not let it truly affect us during the season."
Suh was pulled over in March and ticketed for driving a BMW 91 mph in a 55 mph zone. In December 2011, he was also involved in a crash in Portland in which he lost control of a car and crashed into a drinking fountain and tree. Suh cooperated with Portland police, and no tickets were issued for the crash.
"Things, I believe, always happen for a reason. At that particular moment, you're not gonna know what those reasons are," Suh said about his own offseason incidents, according to Yahoo! Sports. "You look back and reflect on those (experiences) and take the positives and learn from the negatives and make the most of them."
Berry is entering his third NFL season. He started three games last season for the Lions and one the previous season.
Lions veterans are scheduled to report to training camp in Allen Park, Mich., on Thursday.
Information from The Associated Press contributed to this report.