Authorities have arrested an Indiana couple on charges they plotted to have a North Brunswick woman killed.

Narsan Lingala, 54, and his girlfriend, Sandya Reddy, 51, of Noblesville, Indiana, were arrested in Woodbridge Saturday afternoon when they met an undercover officer posing as a prospective hitman, according to the Middlesex County Prosecutor's Office.

Their alleged target was Lingala's ex-wife, authorities said.

Lingala and Reddy were charged with first-degree attempted murder and conspiracy to commit murder.

The arrests followed a three-month investigation by the Middlesex County Prosecutor's Office, Woodbridge Police Department and the FBI.

The investigation is ongoing and anyone with information about the case is asked to contact Woodbridge Police Detective Michael Barbato at 732-635-7700 or prosecutor's office Detective Lucas Kitto at 732-745-3976.

Matt Gray may be reached at mgray@njadvancemedia.com. Follow him on Twitter @MattGraySJT. Find the South Jersey Times on Facebook. Have a tip? Tell us: nj.com/tips.