His agent, however, said no charges have been filed and Jones-Drew didn't hit anybody.
"We have confirmed with the St. Augustine Police Department that no charges have been filed against Maurice and that the matter is under investigation," agent Adisa Bakari told NFL.com's Ian Rapoport. "While Maurice was present when the events in question began, he quickly departed the premises immediately thereafter. Maurice was not involved in any physical altercation, whatsoever."
St. Augustine police later issued a statement explaining the situation.
"The St. Augustine Police Department has taken a notarized statement of Misdemeanor Battery against Jacksonville Jaguar player Maurice Jones-Drew that stemmed from an altercation at the Conch House on Sunday, May 26, 2013," the statement read. "Jones-Drew has not been charged with any crime and maintains his innocence. He is cooperating fully with our investigation.
"This matter is an on-going investigation at this time. As soon as we complete our investigation, we will send out a release with our findings or conclusion."
According to the police report, a friend of Jones-Drew's put his hands on a security guard after being warned to stop touching a young woman. An alleged scuffle ensued wherein the security guard -- who goes by the nickname "Hillbilly" in the police report -- put the friend in a headlock. At that point, Jones-Drew allegedly knocked out the security guard with a closed fist to the cheek.
Doctors found contusions and a bone bruise but no broken bones in Hillbilly's swollen jaw.
"We are aware of the situation regarding Maurice Jones-Drew and are in the process of gathering more information," the Jaguars said in a statement to Rapoport. "Due to this being a legal matter, we'll have no further comment at this time."
Although Jones-Drew, a three-time Pro Bowl pick, has been a model citizen since entering the NFL, he was accused of assaulting a Denny's patron just before the 2006 NFL Draft. Charges ultimately were dropped.
Jones-Drew will be investigated under the league's personal-conduct policy. The NFL Commissioner's office typically allows the legal process to play out in incidents such as this one before making any decisions.
Follow Chris Wesseling on Twitter @ChrisWesseling.