(CNN) — An off-duty Indianapolis police officer shot a fellow officer and fled to Cincinnati, where he was later arrested, according to police.
Both officers — the suspect and the victim — work at the Indianapolis Metropolitan Police Department, said Maj. Richard Riddle.
Around 8 p.m. ET, officers responded to a call from the estranged wife of a police officer about a domestic incident, he said.
After the initial visit from officers, a special investigations unit detective was sent to do followup work at the scene.
The SIU unit investigates criminal complaints or criminal allegations involving police officers and other public safety officials in the city of Indianapolis.
While the detective was at the scene, the suspect re-emerged at the apartment and started shooting. One of the bullets struck the detective in the elbow.
Worked 18 years for Indianapolis police
The detective returned fire, but missed. The suspect then fled the scene in his personal car.
Early Saturday morning, he was arrested in Cincinnati, Ohio.
The suspect has not been formally charged yet, pending extradition to Indiana, said Riddle. His name will be released once that process is complete, he said.
The suspect worked for the Indianapolis police for 18 years and is now suspended without pay pending termination. It wasn’t clear whether he used his service weapon.
Riddle said he didn’t know if the two officers knew each other before the incident.
The detective was at a local hospital in good condition.