JOHNSON COUNTY, Ind. - At least one agent with the U.S. Marshals Service was injured while serving a warrant in Johnson County on Thursday afternoon.
Deputies said an agent suffered a "serious knee injury" while trying to arrest Christopher Cunningham in Nineveh.
Police said Cunningham's father, David Cunningham, told authorities his son was not home and punched an agent on the side of his head. Agents were able to restrain David Cunningham, but not until after he cut the thumb of an agent.
Authorities then tried to make contact with Christopher Cunningham. He initially cooperated but then walked away, officials said.
Agents said they used a stun gun on him, but as agents tried to handcuff him, he started violently kicking them.
One agent was struck by the kicks and suffered a "serious knee injury," officials said.
The injured agent refused medical attention at the scene, but went to a hospital for evaluation and treatment, officials said.
The names of the agents involved in the incident were redacted from the police report, so it was not yet clear if more than one agent was injured.
Both Christopher Cunningham and David Cunningham were taken to the Johnson County Jail.
Christopher Cunningham faces charges from the original warrant, resisting law enforcement and battery on an officer.
David Cunningham faces charges of resisting law enforcement and battery on an officer.